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fix: remove duplicate english curriculum (#53629)

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Oliver Eyton-Williams
2024-02-09 17:44:12 +01:00
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curriculum/challenges/korean/english/00-certifications/a2-english-for-developers-certification/a2-english-for-developers-certification.yml
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---
id: 651dd7e01d697d0aab7833b7
title: A2 English for Developers Certification
certification: a2-english-for-developers
challengeType: 7
isPrivate: true
tests:
- id: 651dd3e06ffb500e3f2ce478
title: Challenge 1
curriculum/challenges/korean/english/00-certifications/back-end-development-and-apis-certification/back-end-development-and-apis-certification.yml
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---
id: 561add10cb82ac38a17523bc
title: Back End Development and APIs Certification
certification: back-end-development-and-apis
challengeType: 7
isPrivate: true
tests:
- id: bd7158d8c443edefaeb5bdef
title: Timestamp Microservice
- id: bd7158d8c443edefaeb5bdff
title: Request Header Parser Microservice
- id: bd7158d8c443edefaeb5bd0e
title: URL Shortener Microservice
- id: 5a8b073d06fa14fcfde687aa
title: Exercise Tracker
- id: bd7158d8c443edefaeb5bd0f
title: File Metadata Microservice
curriculum/challenges/korean/english/00-certifications/college-algebra-with-python-certification/college-algebra-with-python-certification.yml
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---
id: 61531b20cc9dfa2741a5b800
title: College Algebra with Python Certification
certification: college-algebra-with-python
challengeType: 7
isPrivate: true
tests:
- id: 63d83ff239c73468b059cd3f
title: Build a Multi-Function Calculator
- id: 63d83ffd39c73468b059cd40
title: Build a Graphing Calculator
- id: 63d8401039c73468b059cd41
title: Build Three Math Games
- id: 63d8401e39c73468b059cd42
title: Build a Financial Calculator
- id: 63d8402e39c73468b059cd43
title: Build a Data Graph Explorer
curriculum/challenges/korean/english/00-certifications/data-analysis-with-python-certification/data-analysis-with-python-certification.yml
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id: 5e46fc95ac417301a38fb934
title: Data Analysis with Python Certification
certification: data-analysis-with-python
challengeType: 7
isPrivate: true
tests:
- id: 5e46f7e5ac417301a38fb928
title: Mean-Variance-Standard Deviation Calculator
- id: 5e46f7e5ac417301a38fb929
title: Demographic Data Analyzer
- id: 5e46f7f8ac417301a38fb92a
title: Medical Data Visualizer
- id: 5e46f802ac417301a38fb92b
title: Page View Time Series Visualizer
- id: 5e4f5c4b570f7e3a4949899f
title: Sea Level Predictor
curriculum/challenges/korean/english/00-certifications/data-visualization-certification/data-visualization-certification.yml
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id: 5a553ca864b52e1d8bceea14
title: Data Visualization Certification
certification: data-visualization
challengeType: 7
isPrivate: true
tests:
- id: bd7168d8c242eddfaeb5bd13
title: Visualize Data with a Bar Chart
- id: bd7178d8c242eddfaeb5bd13
title: Visualize Data with a Scatterplot Graph
- id: bd7188d8c242eddfaeb5bd13
title: Visualize Data with a Heat Map
- id: 587d7fa6367417b2b2512bbf
title: Visualize Data with a Choropleth Map
- id: 587d7fa6367417b2b2512bc0
title: Visualize Data with a Treemap Diagram
curriculum/challenges/korean/english/00-certifications/example-certification/example-certifcation.yml
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---
id: 64514fda6c245de4d11eb7bb
title: Example Certification
certification: example-certification
challengeType: 7
isPrivate: true
tests:
- id: 645147516c245de4d11eb7ba
title: Certification Exam
curriculum/challenges/korean/english/00-certifications/foundational-c-sharp-with-microsoft-certification/foundational-c-sharp-with-microsoft.yml
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---
id: 647f7da207d29547b3bee1ba
title: Foundational C# with Microsoft Certification
certification: foundational-c-sharp-with-microsoft
challengeType: 7
isPrivate: true
tests:
- id: 647e22d18acb466c97ccbef8
title: Foundational C# with Microsoft Certification Exam
curriculum/challenges/korean/english/00-certifications/front-end-development-libraries-certification/front-end-development-libraries-certification.yml
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---
id: 561acd10cb82ac38a17513bc
title: Front End Development Libraries Certification
certification: front-end-development-libraries
challengeType: 7
isPrivate: true
tests:
- id: bd7158d8c442eddfaeb5bd13
title: Build a Random Quote Machine
- id: bd7157d8c242eddfaeb5bd13
title: Build a Markdown Previewer
- id: 587d7dbc367417b2b2512bae
title: Build a Drum Machine
- id: bd7158d8c442eddfaeb5bd17
title: Build a JavaScript Calculator
- id: bd7158d8c442eddfaeb5bd0f
title: Build a 25 + 5 Clock
curriculum/challenges/korean/english/00-certifications/information-security-certification/information-security-certification.yml
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id: 5e6021435ac9d0ecd8b94b00
title: Information Security Certification
certification: information-security
challengeType: 7
isPrivate: true
tests:
- id: 587d824a367417b2b2512c44
title: Stock Price Checker
- id: 587d824a367417b2b2512c45
title: Anonymous Message Board
- id: 5e46f979ac417301a38fb932
title: Port Scanner
- id: 5e46f983ac417301a38fb933
title: SHA-1 Password Cracker
- id: 5e601c775ac9d0ecd8b94aff
title: Secure Real Time Multiplayer Game
curriculum/challenges/korean/english/00-certifications/javascript-algorithms-and-data-structures-certification/javascript-algorithms-and-data-structures-certification.yml
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id: 561abd10cb81ac38a17513bc
title: JavaScript Algorithms and Data Structures Certification
certification: javascript-algorithms-and-data-structures
challengeType: 7
isPrivate: true
tests:
- id: aaa48de84e1ecc7c742e1124
title: Palindrome Checker
- id: a7f4d8f2483413a6ce226cac
title: Roman Numeral Converter
- id: 56533eb9ac21ba0edf2244e2
title: Caesars Cipher
- id: aff0395860f5d3034dc0bfc9
title: Telephone Number Validator
- id: aa2e6f85cab2ab736c9a9b24
title: Cash Register
curriculum/challenges/korean/english/00-certifications/javascript-algorithms-and-data-structures-v8/javascript-algorithms-and-data-structures-certification-v8.yml
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id: 658180220947283cdc0689ce
title: JavaScript Algorithms and Data Structures (Beta) Certification
certification: javascript-algorithms-and-data-structures-v8
challengeType: 7
isPrivate: true
tests:
- id: 657bdc55a322aae1eac3838f
title: Build a Palindrome Checker
- id: 657bdc8ba322aae1eac38390
title: Build a Roman Numeral Converter
- id: 657bdcb9a322aae1eac38391
title: Build a Telephone Number Validator
- id: 657bdcc3a322aae1eac38392
title: Build a Cash Register
- id: 6555c1d3e11a1574434cf8b5
title: Build a Pokémon Search App
curriculum/challenges/korean/english/00-certifications/legacy-back-end-certification/legacy-back-end-certification.yml
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id: 660add10cb82ac38a17513be
title: Legacy Back End Certification
certification: legacy-back-end
challengeType: 7
isPrivate: true
tests:
- id: bd7158d8c443edefaeb5bdef
title: Timestamp Microservice
- id: bd7158d8c443edefaeb5bdff
title: Request Header Parser Microservice
- id: bd7158d8c443edefaeb5bd0e
title: URL Shortener Microservice
- id: bd7158d8c443edefaeb5bdee
title: Image Search Abstraction Layer
- id: bd7158d8c443edefaeb5bd0f
title: File Metadata Microservice
- id: bd7158d8c443eddfaeb5bdef
title: Build a Voting App
- id: bd7158d8c443eddfaeb5bdff
title: Build a Nightlife Coordination App
- id: bd7158d8c443eddfaeb5bd0e
title: Chart the Stock Market
- id: bd7158d8c443eddfaeb5bd0f
title: Manage a Book Trading Club
- id: bd7158d8c443eddfaeb5bdee
title: Build a Pinterest Clone
curriculum/challenges/korean/english/00-certifications/legacy-data-visualization-certification/legacy-data-visualization-certification.yml
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id: 561add10cb82ac39a17513bc
title: Legacy Data Visualization Certification
certification: legacy-data-visualization
challengeType: 7
isPrivate: true
tests:
- id: bd7157d8c242eddfaeb5bd13
title: Build a Markdown Previewer
- id: bd7156d8c242eddfaeb5bd13
title: Build a Camper Leaderboard
- id: bd7155d8c242eddfaeb5bd13
title: Build a Recipe Box
- id: bd7154d8c242eddfaeb5bd13
title: Build the Game of Life
- id: bd7153d8c242eddfaeb5bd13
title: Build a Roguelike Dungeon Crawler Game
- id: bd7168d8c242eddfaeb5bd13
title: Visualize Data with a Bar Chart
- id: bd7178d8c242eddfaeb5bd13
title: Visualize Data with a Scatterplot Graph
- id: bd7188d8c242eddfaeb5bd13
title: Visualize Data with a Heat Map
- id: bd7198d8c242eddfaeb5bd13
title: Show National Contiguity with a Force Directed Graph
- id: bd7108d8c242eddfaeb5bd13
title: Map Data Across the Globe
curriculum/challenges/korean/english/00-certifications/legacy-front-end-certification/legacy-front-end-certification.yml
-26
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@@ -1,26 +0,0 @@
id: 561add10cb82ac38a17513be
title: Legacy Front End Certification
certification: legacy-front-end
challengeType: 7
isPrivate: true
tests:
- id: bd7158d8c242eddfaeb5bd13
title: Build a Personal Portfolio Webpage
- id: bd7158d8c442eddfaeb5bd13
title: Build a Random Quote Machine
- id: bd7158d8c442eddfaeb5bd0f
title: Build a 25 + 5 Clock
- id: bd7158d8c442eddfaeb5bd17
title: Build a JavaScript Calculator
- id: bd7158d8c442eddfaeb5bd10
title: Show the Local Weather
- id: bd7158d8c442eddfaeb5bd1f
title: Use the Twitch JSON API
- id: bd7158d8c442eddfaeb5bd18
title: Stylize Stories on Camper News
- id: bd7158d8c442eddfaeb5bd19
title: Build a Wikipedia Viewer
- id: bd7158d8c442eedfaeb5bd1c
title: Build a Tic Tac Toe Game
- id: bd7158d8c442eddfaeb5bd1c
title: Build a Simon Game
curriculum/challenges/korean/english/00-certifications/legacy-full-stack-certification/legacy-full-stack-certification.yml
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id: 561add10cb82ac38a17213bd
title: Legacy Full Stack Certification
certification: legacy-full-stack
challengeType: 7
isPrivate: true
tests:
- id: 561add10cb82ac38a17513bc
title: Responsive Web Design Certification
- id: 561abd10cb81ac38a17513bc
title: JavaScript Algorithms and Data Structures Certification
- id: 561acd10cb82ac38a17513bc
title: Front End Libraries Certification
- id: 5a553ca864b52e1d8bceea14
title: Data Visualization Certification
- id: 561add10cb82ac38a17523bc
title: API's and Microservices Certification
- id: 561add10cb82ac38a17213bc
title: Legacy Information Security and Quality Assurance Certification
curriculum/challenges/korean/english/00-certifications/legacy-information-security-and-quality-assurance-certification/legacy-information-security-and-quality-assurance-certification.yml
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id: 561add10cb82ac38a17213bc
title: Legacy Information Security and Quality Assurance Certification
certification: legacy-information-security-and-quality-assurance
challengeType: 7
isPrivate: true
tests:
- id: 587d8249367417b2b2512c41
title: Metric-Imperial Converter
- id: 587d8249367417b2b2512c42
title: Issue Tracker
- id: 587d824a367417b2b2512c43
title: Personal Library
- id: 587d824a367417b2b2512c44
title: Stock Price Checker
- id: 587d824a367417b2b2512c45
title: Anonymous Message Board
curriculum/challenges/korean/english/00-certifications/machine-learning-with-python-certification/machine-learning-with-python-certification.yml
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id: 5e46fc95ac417301a38fb935
title: Machine Learning with Python Certification
certification: machine-learning-with-python
challengeType: 7
isPrivate: true
tests:
- id: 5e46f8d6ac417301a38fb92d
title: Rock Paper Scissors
- id: 5e46f8dcac417301a38fb92e
title: Cat and Dog Image Classifier
- id: 5e46f8e3ac417301a38fb92f
title: Book Recommendation Engine using KNN
- id: 5e46f8edac417301a38fb930
title: Linear Regression Health Costs Calculator
- id: 5e46f8edac417301a38fb931
title: Neural Network SMS Text Classifier
curriculum/challenges/korean/english/00-certifications/quality-assurance-certification/quality-assurance-certification.yml
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id: 5e611829481575a52dc59c0e
title: Quality Assurance Certification
certification: quality-assurance
challengeType: 7
isPrivate: true
tests:
- id: 587d8249367417b2b2512c41
title: Metric-Imperial Converter
- id: 587d8249367417b2b2512c42
title: Issue Tracker
- id: 587d824a367417b2b2512c43
title: Personal Library
- id: 5e601bf95ac9d0ecd8b94afd
title: Sudoku Solver
- id: 5e601c0d5ac9d0ecd8b94afe
title: American British Translator
curriculum/challenges/korean/english/00-certifications/relational-database-certification/relational-database-certification.yml
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id: 606243f50267e718b1e755f4
title: Relational Database Certification
certification: relational-database
challengeType: 7
isPrivate: true
tests:
- id: 5f1a4ef5d5d6b5ab580fc6ae
title: Celestial Bodies Database
- id: 5f9771307d4d22b9d2b75a94
title: World Cup Database
- id: 5f87ac112ae598023a42df1a
title: Salon Appointment Scheduler
- id: 602d9ff222201c65d2a019f2
title: Periodic Table Database
- id: 602da04c22201c65d2a019f4
title: Number Guessing Game
curriculum/challenges/korean/english/00-certifications/responsive-web-design-certification/responsive-web-design-certification.yml
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id: 561add10cb82ac38a17513bc
title: Responsive Web Design Certification
certification: responsive-web-design
challengeType: 7
isPrivate: true
tests:
- id: bd7158d8c442eddfaeb5bd18
title: Build a Tribute Page
- id: 587d78af367417b2b2512b03
title: Build a Survey Form
- id: 587d78af367417b2b2512b04
title: Build a Product Landing Page
- id: 587d78b0367417b2b2512b05
title: Build a Technical Documentation Page
- id: bd7158d8c242eddfaeb5bd13
title: Build a Personal Portfolio Webpage
curriculum/challenges/korean/english/00-certifications/scientific-computing-with-python-certification/scientific-computing-with-python-certification.yml
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id: 5e44431b903586ffb414c951
title: Scientific Computing with Python Certification
certification: scientific-computing-with-python
challengeType: 7
isPrivate: true
tests:
- id: 5e44412c903586ffb414c94c
title: Arithmetic Formatter
- id: 5e444136903586ffb414c94d
title: Time Calculator
- id: 5e44413e903586ffb414c94e
title: Budget App
- id: 5e444147903586ffb414c94f
title: Polygon Area Calculator
- id: 5e44414f903586ffb414c950
title: Probability Calculator
curriculum/challenges/korean/english/00-certifications/upcoming-python-certification/upcoming-python-certification.yml
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---
id: 64afc4e8f3b37856e035b85f
title: Upcoming Python Certification
certification: upcoming-python-certification
challengeType: 7
isPrivate: true
tests:
- id: 64afc37bf3b37856e035b85e
title: Upcoming Python Project
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/add-a-text-alternative-to-images-for-visually-impaired-accessibility.md
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---
id: 587d774c367417b2b2512a9c
title: Add a Text Alternative to Images for Visually Impaired Accessibility
challengeType: 0
videoUrl: 'https://scrimba.com/c/cPp7VfD'
forumTopicId: 16628
dashedName: add-a-text-alternative-to-images-for-visually-impaired-accessibility
---
# --description--
You've likely seen an `alt` attribute on an `img` tag in other challenges. `alt` text describes the image's content and provides a text-alternative for it. An `alt` attribute helps in cases where the image fails to load or can't be seen by a user. Search engines also use it to understand what an image contains to include it in search results. Here's an example:
```html
<img src="importantLogo.jpeg" alt="Company logo">
```
People with visual impairments rely on screen readers to convert web content to an audio interface. They won't get information if it's only presented visually. For images, screen readers can access the `alt` attribute and read its contents to deliver key information.
Good `alt` text provides the reader a brief description of the image. You should always include an `alt` attribute on your image. Per HTML5 specification, this is now considered mandatory.
# --instructions--
Camper Cat happens to be both a coding ninja and an actual ninja, who is building a website to share his knowledge. The profile picture he wants to use shows his skills and should be appreciated by all site visitors. Add an `alt` attribute in the `img` tag, that explains Camper Cat is doing karate. (The image `src` doesn't link to an actual file, so you should see the `alt` text in the display.)
# --hints--
Your `img` tag should have an `alt` attribute and it should not be empty.
```js
assert($('img').attr('alt'));
```
# --seed--
## --seed-contents--
```html
<img src="doingKarateWow.jpeg">
```
# --solutions--
```html
<img src="doingKarateWow.jpeg" alt="Someone doing karate">
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/add-an-accessible-date-picker.md
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---
id: 587d778b367417b2b2512aa8
title: Add an Accessible Date Picker
challengeType: 0
videoUrl: 'https://scrimba.com/c/cR3bRbCV'
forumTopicId: 301008
dashedName: add-an-accessible-date-picker
---
# --description--
Forms often include the `input` field, which can be used to create several different form controls. The `type` attribute on this element indicates what kind of `input` element will be created.
You may have noticed the `text` and `submit` input types in prior challenges, and HTML5 introduced an option to specify a `date` field. Depending on browser support, a date picker shows up in the `input` field when it's in focus, which makes filling in a form easier for all users.
For older browsers, the type will default to `text`, so it helps to show users the expected date format in the `label` or `placeholder` text just in case.
Here's an example:
```html
<label for="input1">Enter a date:</label>
<input type="date" id="input1" name="input1">
```
# --instructions--
Camper Cat is setting up a Mortal Kombat tournament and wants to ask his competitors to see what date works best. Add an `input` tag with a `type` attribute of `date`, an `id` attribute of `pickdate`, and a `name` attribute of `date`.
# --hints--
Your code should add one `input` tag for the date selector field.
```js
assert($('input').length == 2);
```
Your `input` tag should have a `type` attribute with a value of `date`.
```js
assert($('input').attr('type') == 'date');
```
Your `input` tag should have an `id` attribute with a value of `pickdate`.
```js
assert($('input').attr('id') == 'pickdate');
```
Your `input` tag should have a `name` attribute with a value of `date`.
```js
assert($('input').attr('name') == 'date');
```
# --seed--
## --seed-contents--
```html
<body>
<header>
<h1>Tournaments</h1>
</header>
<main>
<section>
<h2>Mortal Kombat Tournament Survey</h2>
<form>
<p>Tell us the best date for the competition</p>
<label for="pickdate">Preferred Date:</label>
<!-- Only change code below this line -->
<!-- Only change code above this line -->
<input type="submit" name="submit" value="Submit">
</form>
</section>
</main>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
# --solutions--
```html
<body>
<header>
<h1>Tournaments</h1>
</header>
<main>
<section>
<h2>Mortal Kombat Tournament Survey</h2>
<form>
<p>Tell us the best date for the competition</p>
<label for="pickdate">Preferred Date:</label>
<input type="date" id="pickdate" name="date">
<input type="submit" name="submit" value="Submit">
</form>
</section>
</main>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/avoid-colorblindness-issues-by-carefully-choosing-colors-that-convey-information.md
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---
id: 587d778f367417b2b2512aad
title: >-
Avoid Colorblindness Issues by Carefully Choosing Colors that Convey
Information
challengeType: 0
videoUrl: 'https://scrimba.com/c/c437as3'
forumTopicId: 301011
dashedName: >-
avoid-colorblindness-issues-by-carefully-choosing-colors-that-convey-information
---
# --description--
There are various forms of colorblindness. These can range from a reduced sensitivity to a certain wavelength of light to the inability to see color at all. The most common form is a reduced sensitivity to detect greens.
For example, if two similar green colors are the foreground and background color of your content, a colorblind user may not be able to distinguish them. Close colors can be thought of as neighbors on the color wheel, and those combinations should be avoided when conveying important information.
**Note:** Some online color picking tools include visual simulations of how colors appear for different types of colorblindness. These are great resources in addition to online contrast checking calculators.
# --instructions--
Camper Cat is testing different styles for an important button, but the yellow (`#FFFF33`) `background-color` and the green (`#33FF33`) text `color` are neighboring hues on the color wheel and virtually indistinguishable for some colorblind users. (Their similar lightness also fails the contrast ratio check). Change the text `color` to a dark blue (`#003366`) to solve both problems.
# --hints--
Your code should change the text `color` for the `button` to the dark blue.
```js
assert($('button').css('color') == 'rgb(0, 51, 102)');
```
# --seed--
## --seed-contents--
```html
<head>
<style>
button {
color: #33FF33;
background-color: #FFFF33;
font-size: 14px;
padding: 10px;
}
</style>
</head>
<body>
<header>
<h1>Danger!</h1>
</header>
<button>Delete Internet</button>
</body>
```
# --solutions--
```html
<head>
<style>
button {
color: #003366;
background-color: #FFFF33;
font-size: 14px;
padding: 10px;
}
</style>
</head>
<body>
<header>
<h1>Danger!</h1>
</header>
<button>Delete Internet</button>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/avoid-colorblindness-issues-by-using-sufficient-contrast.md
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@@ -1,84 +0,0 @@
---
id: 587d778f367417b2b2512aac
title: Avoid Colorblindness Issues by Using Sufficient Contrast
challengeType: 0
videoUrl: 'https://scrimba.com/c/cmzMEUw'
forumTopicId: 301012
dashedName: avoid-colorblindness-issues-by-using-sufficient-contrast
---
# --description--
Color is a large part of visual design, but its use introduces two accessibility issues. First, color alone should not be used as the only way to convey important information because screen reader users won't see it. Second, foreground and background colors need sufficient contrast so colorblind users can distinguish them.
Previous challenges covered having text alternatives to address the first issue. The last challenge introduced contrast checking tools to help with the second. The WCAG-recommended contrast ratio of 4.5:1 applies for color use as well as gray-scale combinations.
Colorblind users have trouble distinguishing some colors from others - usually in hue but sometimes lightness as well. You may recall the contrast ratio is calculated using the relative luminance (or lightness) values of the foreground and background colors.
In practice, the 4.5:1 contrast ratio can be reached by shading (adding black to) the darker color and tinting (adding white to) the lighter color. Darker shades on the color wheel are considered to be shades of blues, violets, magentas, and reds, whereas lighter tinted colors are oranges, yellows, greens, and blue-greens.
# --instructions--
Camper Cat is experimenting with using color for his blog text and background, but his current combination of a greenish `background-color` with maroon text `color` has a 2.5:1 contrast ratio. You can easily adjust the lightness of the colors since he declared them using the CSS `hsl()` property (which stands for hue, saturation, lightness) by changing the third argument. Increase the `background-color` lightness value from 35% to 55%, and decrease the `color` lightness value from 20% to 15%. This improves the contrast to 5.9:1.
# --hints--
Your code should only change the lightness value for the text `color` property to a value of 15%.
```js
assert(code.match(/color:\s*?hsl\(0,\s*?55%,\s*?15%\)/gi));
```
Your code should only change the lightness value for the `background-color` property to a value of 55%.
```js
assert(code.match(/background-color:\s*?hsl\(120,\s*?25%,\s*?55%\)/gi));
```
# --seed--
## --seed-contents--
```html
<head>
<style>
body {
color: hsl(0, 55%, 20%);
background-color: hsl(120, 25%, 35%);
}
</style>
</head>
<body>
<header>
<h1>Deep Thoughts with Master Camper Cat</h1>
</header>
<article>
<h2>A Word on the Recent Catnip Doping Scandal</h2>
<p>The influence that catnip has on feline behavior is well-documented, and its use as an herbal supplement in competitive ninja circles remains controversial. Once again, the debate to ban the substance is brought to the public's attention after the high-profile win of Kittytron, a long-time proponent and user of the green stuff, at the Claw of Fury tournament.</p>
<p>As I've stated in the past, I firmly believe a true ninja's skills must come from within, with no external influences. My own catnip use shall continue as purely recreational.</p>
</article>
</body>
```
# --solutions--
```html
<head>
<style>
body {
color: hsl(0, 55%, 15%);
background-color: hsl(120, 25%, 55%);
}
</style>
</head>
<body>
<header>
<h1>Deep Thoughts with Master Camper Cat</h1>
</header>
<article>
<h2>A Word on the Recent Catnip Doping Scandal</h2>
<p>The influence that catnip has on feline behavior is well-documented, and its use as an herbal supplement in competitive ninja circles remains controversial. Once again, the debate to ban the substance is brought to the public's attention after the high-profile win of Kittytron, a long-time proponent and user of the green stuff, at the Claw of Fury tournament.</p>
<p>As I've stated in the past, I firmly believe a true ninja's skills must come from within, with no external influences. My own catnip use shall continue as purely recreational.</p>
</article>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/give-links-meaning-by-using-descriptive-link-text.md
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@@ -1,75 +0,0 @@
---
id: 587d778f367417b2b2512aae
title: Give Links Meaning by Using Descriptive Link Text
challengeType: 0
videoUrl: 'https://scrimba.com/c/c437DcV'
forumTopicId: 301013
dashedName: give-links-meaning-by-using-descriptive-link-text
---
# --description--
Screen reader users have various options for what type of content their device reads. These options include skipping to (or over) landmark elements, jumping to the main content, or getting a page summary from the headings. Another option is to only hear the links available on a page.
Screen readers do this by reading the link text, or what's between the anchor (`a`) tags. Having a list of "click here" or "read more" links isn't helpful. Instead, use brief but descriptive text within the `a` tags to provide more meaning for these users.
# --instructions--
The link text that Camper Cat is using is not very descriptive without the surrounding context. Move the anchor (`a`) tags so they wrap around the text `information about batteries` instead of `Click here`.
# --hints--
Your code should move the anchor `a` tags from around the words `Click here` to wrap around the words `information about batteries`.
```js
assert(
$('a')
.text()
.match(/^(information about batteries)$/g)
);
```
The `a` element should have an `href` attribute with a value of an empty string `""`.
```js
assert($('a').attr('href') === '');
```
The `a` element should have a closing tag.
```js
assert(
code.match(/<\/a>/g) &&
code.match(/<\/a>/g).length === code.match(/<a href=(''|"")>/g).length
);
```
# --seed--
## --seed-contents--
```html
<body>
<header>
<h1>Deep Thoughts with Master Camper Cat</h1>
</header>
<article>
<h2>Defeating your Foe: the Red Dot is Ours!</h2>
<p>Felines the world over have been waging war on the most persistent of foes. This red nemesis combines both cunning stealth and lightning speed. But chin up, fellow fighters, our time for victory may soon be near. <a href="">Click here</a> for information about batteries</p>
</article>
</body>
```
# --solutions--
```html
<body>
<header>
<h1>Deep Thoughts with Master Camper Cat</h1>
</header>
<article>
<h2>Defeating your Foe: the Red Dot is Ours!</h2>
<p>Felines the world over have been waging war on the most persistent of foes. This red nemesis combines both cunning stealth and lightning speed. But chin up, fellow fighters, our time for victory may soon be near. Click here for <a href="">information about batteries</a></p>
</article>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/improve-accessibility-of-audio-content-with-the-audio-element.md
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@@ -1,115 +0,0 @@
---
id: 587d7789367417b2b2512aa4
title: Improve Accessibility of Audio Content with the audio Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/cVJVkcZ'
forumTopicId: 301014
dashedName: improve-accessibility-of-audio-content-with-the-audio-element
---
# --description--
HTML5's `audio` element gives semantic meaning when it wraps sound or audio stream content in your markup. Audio content also needs a text alternative to be accessible to people who are deaf or hard of hearing. This can be done with nearby text on the page or a link to a transcript.
The `audio` tag supports the `controls` attribute. This shows the browser default play, pause, and other controls, and supports keyboard functionality. This is a boolean attribute, meaning it doesn't need a value, its presence on the tag turns the setting on.
Here's an example:
```html
<audio id="meowClip" controls>
<source src="audio/meow.mp3" type="audio/mpeg">
<source src="audio/meow.ogg" type="audio/ogg">
</audio>
```
**Note:** Multimedia content usually has both visual and auditory components. It needs synchronized captions and a transcript so users with visual and/or auditory impairments can access it. Generally, a web developer is not responsible for creating the captions or transcript, but needs to know to include them.
# --instructions--
Time to take a break from Camper Cat and meet fellow camper Zersiax (@zersiax), a champion of accessibility and a screen reader user. To hear a clip of his screen reader in action, add an `audio` element after the `p` element. Include the `controls` attribute. Then place a `source` element inside the `audio` tags with the `src` attribute set to `https://s3.amazonaws.com/freecodecamp/screen-reader.mp3` and `type` attribute set to `"audio/mpeg"`.
**Note:** The audio clip may sound fast and be difficult to understand, but that is a normal speed for screen reader users.
# --hints--
Your code should have one `audio` tag.
```js
assert($('audio').length === 1);
```
Your `audio` element should have a closing tag.
```js
assert(
code.match(/<\/audio>/g).length === 1 &&
code.match(/<audio.*>[\s\S]*<\/audio>/g)
);
```
The `audio` tag should have the `controls` attribute.
```js
assert($('audio').attr('controls'));
```
Your code should have one `source` tag.
```js
assert($('source').length === 1);
```
Your `source` tag should be inside the `audio` tags.
```js
assert($('audio').children('source').length === 1);
```
The value for the `src` attribute on the `source` tag should match the link in the instructions exactly.
```js
assert(
$('source').attr('src') ===
'https://s3.amazonaws.com/freecodecamp/screen-reader.mp3'
);
```
Your code should include a `type` attribute on the `source` tag with a value of audio/mpeg.
```js
assert($('source').attr('type') === 'audio/mpeg');
```
# --seed--
## --seed-contents--
```html
<body>
<header>
<h1>Real Coding Ninjas</h1>
</header>
<main>
<p>A sound clip of Zersiax's screen reader in action.</p>
</main>
</body>
```
# --solutions--
```html
<body>
<header>
<h1>Real Coding Ninjas</h1>
</header>
<main>
<p>A sound clip of Zersiax's screen reader in action.</p>
<audio controls>
<source src="https://s3.amazonaws.com/freecodecamp/screen-reader.mp3" type="audio/mpeg"/>
</audio>
</main>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/improve-chart-accessibility-with-the-figure-element.md
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@@ -1,161 +0,0 @@
---
id: 587d778a367417b2b2512aa5
title: Improve Chart Accessibility with the figure Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/cGJMqtE'
forumTopicId: 301015
dashedName: improve-chart-accessibility-with-the-figure-element
---
# --description--
HTML5 introduced the `figure` element and the related `figcaption`. Used together, these items wrap a visual representation (like an image, diagram, or chart) along with its caption. Wrapping these elements together gives a two-fold accessibility boost by semantically grouping related content and providing a text alternative explaining the `figure`.
For data visualizations like charts, the caption can be used to briefly note the trends or conclusions for users with visual impairments. Another challenge covers how to move a table version of the chart's data off-screen (using CSS) for screen reader users.
Here's an example - note that the `figcaption` goes inside the `figure` tags and can be combined with other elements:
```html
<figure>
<img src="roundhouseDestruction.jpeg" alt="Photo of Camper Cat executing a roundhouse kick">
<br>
<figcaption>
Master Camper Cat demonstrates proper form of a roundhouse kick.
</figcaption>
</figure>
```
# --instructions--
Camper Cat is hard at work creating a stacked bar chart showing the amount of time per week to spend training in stealth, combat, and weapons. Help him structure his page better by changing the `div` tag he used to a `figure` tag, and the `p` tag that surrounds the caption to a `figcaption` tag.
# --hints--
Your code should have one `figure` tag.
```js
assert($('figure').length == 1);
```
Your code should have one `figcaption` tag.
```js
assert($('figcaption').length == 1);
```
Your code should not have any `div` tags.
```js
assert($('div').length == 0);
```
Your code should not have any `p` tags.
```js
assert($('p').length == 0);
```
The `figcaption` should be a child of the `figure` tag.
```js
assert($('figure').children('figcaption').length == 1);
```
Your `figure` element should have a closing tag.
```js
assert(
code.match(/<\/figure>/g) &&
code.match(/<\/figure>/g).length === code.match(/<figure>/g).length
);
```
# --seed--
## --seed-contents--
```html
<body>
<header>
<h1>Training</h1>
<nav>
<ul>
<li><a href="#stealth">Stealth &amp; Agility</a></li>
<li><a href="#combat">Combat</a></li>
<li><a href="#weapons">Weapons</a></li>
</ul>
</nav>
</header>
<main>
<section>
<!-- Only change code below this line -->
<div>
<!-- Stacked bar chart will go here -->
<br>
<p>Breakdown per week of time to spend training in stealth, combat, and weapons.</p>
</div>
<!-- Only change code above this line -->
</section>
<section id="stealth">
<h2>Stealth &amp; Agility Training</h2>
<article><h3>Climb foliage quickly using a minimum spanning tree approach</h3></article>
<article><h3>No training is NP-complete without parkour</h3></article>
</section>
<section id="combat">
<h2>Combat Training</h2>
<article><h3>Dispatch multiple enemies with multithreaded tactics</h3></article>
<article><h3>Goodbye world: 5 proven ways to knock out an opponent</h3></article>
</section>
<section id="weapons">
<h2>Weapons Training</h2>
<article><h3>Swords: the best tool to literally divide and conquer</h3></article>
<article><h3>Breadth-first or depth-first in multi-weapon training?</h3></article>
</section>
</main>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
# --solutions--
```html
<body>
<header>
<h1>Training</h1>
<nav>
<ul>
<li><a href="#stealth">Stealth &amp; Agility</a></li>
<li><a href="#combat">Combat</a></li>
<li><a href="#weapons">Weapons</a></li>
</ul>
</nav>
</header>
<main>
<section>
<figure>
<!-- Stacked bar chart will go here -->
<br>
<figcaption>Breakdown per week of time to spend training in stealth, combat, and weapons.</figcaption>
</figure>
</section>
<section id="stealth">
<h2>Stealth &amp; Agility Training</h2>
<article><h3>Climb foliage quickly using a minimum spanning tree approach</h3></article>
<article><h3>No training is NP-complete without parkour</h3></article>
</section>
<section id="combat">
<h2>Combat Training</h2>
<article><h3>Dispatch multiple enemies with multithreaded tactics</h3></article>
<article><h3>Goodbye world: 5 proven ways to knock out an opponent</h3></article>
</section>
<section id="weapons">
<h2>Weapons Training</h2>
<article><h3>Swords: the best tool to literally divide and conquer</h3></article>
<article><h3>Breadth-first or depth-first in multi-weapon training?</h3></article>
</section>
</main>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/improve-form-field-accessibility-with-the-label-element.md
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@@ -1,119 +0,0 @@
---
id: 587d778a367417b2b2512aa6
title: Improve Form Field Accessibility with the label Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/cGJMMAN'
forumTopicId: 301016
dashedName: improve-form-field-accessibility-with-the-label-element
---
# --description--
Improving accessibility with semantic HTML markup applies to using both appropriate tag names and attributes. The next several challenges cover some important scenarios using attributes in forms.
The `label` tag wraps the text for a specific form control item, usually the name or label for a choice. This ties meaning to the item and makes the form more readable. The `for` attribute on a `label` tag explicitly associates that `label` with the form control and is used by screen readers.
You learned about radio buttons and their labels in a lesson in the Basic HTML section. In that lesson, we wrapped the radio button input element inside a `label` element along with the label text in order to make the text clickable. Another way to achieve this is by using the `for` attribute, as explained in this lesson.
The value of the `for` attribute must be the same as the value of the `id` attribute of the form control. Here's an example:
```html
<form>
<label for="name">Name:</label>
<input type="text" id="name" name="name">
</form>
```
# --instructions--
Camper Cat expects a lot of interest in his thoughtful blog posts and wants to include an email sign up form. Add a `for` attribute on the email `label` that matches the `id` on its `input` field.
# --hints--
Your code should have a `for` attribute on the `label` tag that is not empty.
```js
assert($('label').attr('for'));
```
Your `for` attribute value should match the `id` value on the email `input`.
```js
assert($('label').attr('for') == 'email');
```
# --seed--
## --seed-contents--
```html
<body>
<header>
<h1>Deep Thoughts with Master Camper Cat</h1>
</header>
<section>
<form>
<p>Sign up to receive Camper Cat's blog posts by email here!</p>
<label>Email:</label>
<input type="text" id="email" name="email">
<input type="submit" name="submit" value="Submit">
</form>
</section>
<article>
<h2>The Garfield Files: Lasagna as Training Fuel?</h2>
<p>The internet is littered with varying opinions on nutritional paradigms, from catnip paleo to hairball cleanses. But let's turn our attention to an often overlooked fitness fuel, and examine the protein-carb-NOM trifecta that is lasagna...</p>
</article>
<img src="samuraiSwords.jpeg" alt="">
<article>
<h2>Defeating your Foe: the Red Dot is Ours!</h2>
<p>Felines the world over have been waging war on the most persistent of foes. This red nemesis combines both cunning stealth and lightning speed. But chin up, fellow fighters, our time for victory may soon be near...</p>
</article>
<img src="samuraiSwords.jpeg" alt="">
<article>
<h2>Is Chuck Norris a Cat Person?</h2>
<p>Chuck Norris is widely regarded as the premier martial artist on the planet, and it's a complete coincidence that anyone who disagrees with this fact mysteriously disappears soon after. But the real question is, is he a cat person?...</p>
</article>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
# --solutions--
```html
<body>
<header>
<h1>Deep Thoughts with Master Camper Cat</h1>
</header>
<section>
<form>
<p>Sign up to receive Camper Cat's blog posts by email here!</p>
<label for="email">Email:</label>
<input type="text" id="email" name="email">
<input type="submit" name="submit" value="Submit">
</form>
</section>
<article>
<h2>The Garfield Files: Lasagna as Training Fuel?</h2>
<p>The internet is littered with varying opinions on nutritional paradigms, from catnip paleo to hairball cleanses. But let's turn our attention to an often overlooked fitness fuel, and examine the protein-carb-NOM trifecta that is lasagna...</p>
</article>
<img src="samuraiSwords.jpeg" alt="">
<article>
<h2>Defeating your Foe: the Red Dot is Ours!</h2>
<p>Felines the world over have been waging war on the most persistent of foes. This red nemesis combines both cunning stealth and lightning speed. But chin up, fellow fighters, our time for victory may soon be near...</p>
</article>
<img src="samuraiSwords.jpeg" alt="">
<article>
<h2>Is Chuck Norris a Cat Person?</h2>
<p>Chuck Norris is widely regarded as the premier martial artist on the planet, and it's a complete coincidence that anyone who disagrees with this fact mysteriously disappears soon after. But the real question is, is he a cat person?...</p>
</article>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/improve-readability-with-high-contrast-text.md
-80
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@@ -1,80 +0,0 @@
---
id: 587d778e367417b2b2512aab
title: Improve Readability with High Contrast Text
challengeType: 0
videoUrl: 'https://scrimba.com/c/cKb3nCq'
forumTopicId: 301017
dashedName: improve-readability-with-high-contrast-text
---
# --description--
Low contrast between the foreground and background colors can make text difficult to read. Sufficient contrast improves your content's readability, but what exactly does "sufficient" mean?
The Web Content Accessibility Guidelines (WCAG) recommend at least a 4.5 to 1 contrast ratio for normal text. The ratio is calculated by comparing the relative luminance values of two colors. This ranges from 1:1 for the same color, or no contrast, to 21:1 for white against black, the most substantial contrast. There are many contrast checking tools available online that calculate this ratio for you.
# --instructions--
Camper Cat's choice of light gray text on a white background for his recent blog post has a 1.5:1 contrast ratio, making it hard to read. Change the `color` of the text from the current gray (`#D3D3D3`) to a darker gray (`#636363`) to improve the contrast ratio to 6:1.
# --hints--
Your code should change the text `color` for the `body` to the darker gray.
```js
assert($('body').css('color') == 'rgb(99, 99, 99)');
```
Your code should not change the `background-color` for the `body`.
```js
assert($('body').css('background-color') == 'rgb(255, 255, 255)');
```
# --seed--
## --seed-contents--
```html
<head>
<style>
body {
color: #D3D3D3;
background-color: #FFF;
}
</style>
</head>
<body>
<header>
<h1>Deep Thoughts with Master Camper Cat</h1>
</header>
<article>
<h2>A Word on the Recent Catnip Doping Scandal</h2>
<p>The influence that catnip has on feline behavior is well-documented, and its use as an herbal supplement in competitive ninja circles remains controversial. Once again, the debate to ban the substance is brought to the public's attention after the high-profile win of Kittytron, a long-time proponent and user of the green stuff, at the Claw of Fury tournament.</p>
<p>As I've stated in the past, I firmly believe a true ninja's skills must come from within, with no external influences. My own catnip use shall continue as purely recreational.</p>
</article>
</body>
```
# --solutions--
```html
<head>
<style>
body {
color: #636363;
background-color: #FFF;
}
</style>
</head>
<body>
<header>
<h1>Deep Thoughts with Master Camper Cat</h1>
</header>
<article>
<h2>A Word on the Recent Catnip Doping Scandal</h2>
<p>The influence that catnip has on feline behavior is well-documented, and its use as an herbal supplement in competitive ninja circles remains controversial. Once again, the debate to ban the substance is brought to the public's attention after the high-profile win of Kittytron, a long-time proponent and user of the green stuff, at the Claw of Fury tournament.</p>
<p>As I've stated in the past, I firmly believe a true ninja's skills must come from within, with no external influences. My own catnip use shall continue as purely recreational.</p>
</article>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/jump-straight-to-the-content-using-the-main-element.md
-62
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@@ -1,62 +0,0 @@
---
id: 587d774e367417b2b2512a9f
title: Jump Straight to the Content Using the main Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/cPp7zuE'
forumTopicId: 301018
dashedName: jump-straight-to-the-content-using-the-main-element
---
# --description--
HTML5 introduced several new elements that give developers more options while also incorporating accessibility features. These tags include `main`, `header`, `footer`, `nav`, `article`, and `section`, among others.
By default, a browser renders these elements similar to the humble `div`. However, using them where appropriate gives additional meaning to your markup. The tag name alone can indicate the type of information it contains, which adds semantic meaning to that content. Assistive technologies can access this information to provide better page summary or navigation options to their users.
The `main` element is used to wrap (you guessed it) the main content, and there should be only one per page. It's meant to surround the information related to your page's central topic. It's not meant to include items that repeat across pages, like navigation links or banners.
The `main` tag also has an embedded landmark feature that assistive technology can use to navigate to the main content quickly. If you've ever seen a "Jump to Main Content" link at the top of a page, using the `main` tag automatically gives assistive devices that functionality.
# --instructions--
Camper Cat has some big ideas for his ninja weapons page. Help him set up his markup by adding opening and closing `main` tags between the `header` and `footer` (covered in other challenges). Keep the `main` tags empty for now.
# --hints--
Your code should have one `main` tag.
```js
assert($('main').length == 1);
```
The `main` tags should be between the closing `header` tag and the opening `footer` tag.
```js
assert(code.match(/<\/header>\s*?<main>\s*?<\/main>/gi));
```
# --seed--
## --seed-contents--
```html
<header>
<h1>Weapons of the Ninja</h1>
</header>
<footer></footer>
```
# --solutions--
```html
<header>
<h1>Weapons of the Ninja</h1>
</header>
<main>
</main>
<footer></footer>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/know-when-alt-text-should-be-left-blank.md
-76
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@@ -1,76 +0,0 @@
---
id: 587d774c367417b2b2512a9d
title: Know When Alt Text Should be Left Blank
challengeType: 0
videoUrl: 'https://scrimba.com/c/cM9P4t2'
forumTopicId: 301019
dashedName: know-when-alt-text-should-be-left-blank
---
# --description--
In the last challenge, you learned that including an `alt` attribute when using `img` tags is mandatory. However, sometimes images are grouped with a caption already describing them, or are used for decoration only. In these cases, `alt` text may seem redundant or unnecessary.
When an image is already explained with text content or does not add meaning to a page, the `img` still needs an `alt` attribute, but it can be set to an empty string. Here's an example:
```html
<img src="visualDecoration.jpeg" alt="">
```
Background images usually fall under the 'decorative' label as well. However, they are typically applied with CSS rules, and therefore not part of the markup screen readers process.
**Note:** For images with a caption, you may still want to include `alt` text since it helps search engines catalog the image's content.
# --instructions--
Camper Cat has coded a skeleton page for the blog part of his website. He's planning to add a visual break between his two articles with a decorative image of a samurai sword. Add an `alt` attribute to the `img` tag and set it to an empty string. (Note that the image `src` doesn't link to an actual file - don't worry that there are no swords showing in the display.)
# --hints--
Your `img` tag should have an `alt` attribute.
```js
assert(!($('img').attr('alt') == undefined));
```
The `alt` attribute should be set to an empty string.
```js
assert($('img').attr('alt') == '');
```
# --seed--
## --seed-contents--
```html
<h1>Deep Thoughts with Master Camper Cat</h1>
<article>
<h2>Defeating your Foe: the Red Dot is Ours!</h2>
<p>To Come...</p>
</article>
<img src="samuraiSwords.jpeg">
<article>
<h2>Is Chuck Norris a Cat Person?</h2>
<p>To Come...</p>
</article>
```
# --solutions--
```html
<h1>Deep Thoughts with Master Camper Cat</h1>
<article>
<h2>Defeating your Foe: the Red Dot is Ours!</h2>
<p>To Come...</p>
</article>
<img src="samuraiSwords.jpeg" alt="">
<article>
<h2>Is Chuck Norris a Cat Person?</h2>
<p>To Come...</p>
</article>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/make-elements-only-visible-to-a-screen-reader-by-using-custom-css.md
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@@ -1,244 +0,0 @@
---
id: 587d778d367417b2b2512aaa
title: Make Elements Only Visible to a Screen Reader by Using Custom CSS
challengeType: 0
videoUrl: 'https://scrimba.com/c/cJ8QGkhJ'
forumTopicId: 301020
dashedName: make-elements-only-visible-to-a-screen-reader-by-using-custom-css
---
# --description--
Have you noticed that all of the applied accessibility challenges so far haven't used any CSS? This shows the importance of using a logical document outline and semantically meaningful tags around your content before introducing the visual design aspect.
However, CSS's magic can also improve accessibility on your page when you want to visually hide content meant only for screen readers. This happens when information is in a visual format (like a chart), but screen reader users need an alternative presentation (like a table) to access the data. CSS is used to position the screen reader-only elements off the visual area of the browser window.
Here's an example of the CSS rules that accomplish this:
```css
.sr-only {
position: absolute;
left: -10000px;
width: 1px;
height: 1px;
top: auto;
overflow: hidden;
}
```
**Note:** The following CSS approaches will NOT do the same thing:
<ul>
<li><code>display: none;</code> or <code>visibility: hidden;</code> hides content for everyone, including screen reader users</li>
<li>Zero values for pixel sizes, such as <code>width: 0px; height: 0px;</code> removes that element from the flow of your document, meaning screen readers will ignore it</li>
</ul>
# --instructions--
Camper Cat created a really cool stacked bar chart for his training page, and put the data into a table for his visually impaired users. The table already has an `sr-only` class, but the CSS rules aren't filled in yet. Give the `position` an `absolute` value, the `left` a `-10000px` value, and the `width` and `height` both `1px` values.
# --hints--
Your code should set the `position` property of the `sr-only` class to a value of `absolute`.
```js
assert($('.sr-only').css('position') == 'absolute');
```
Your code should set the `left` property of the `sr-only` class to a value of `-10000px`.
```js
assert($('.sr-only').css('left') == '-10000px');
```
Your code should set the `width` property of the `sr-only` class to a value of `1` pixel.
```js
assert(code.match(/width:\s*?1px/gi));
```
Your code should set the `height` property of the `sr-only` class to a value of `1` pixel.
```js
assert(code.match(/height:\s*?1px/gi));
```
# --seed--
## --seed-contents--
```html
<head>
<style>
.sr-only {
position: ;
left: ;
width: ;
height: ;
top: auto;
overflow: hidden;
}
</style>
</head>
<body>
<header>
<h1>Training</h1>
<nav>
<ul>
<li><a href="#stealth">Stealth &amp; Agility</a></li>
<li><a href="#combat">Combat</a></li>
<li><a href="#weapons">Weapons</a></li>
</ul>
</nav>
</header>
<section>
<h2>Master Camper Cat's Beginner Three Week Training Program</h2>
<figure>
<!-- Stacked bar chart of weekly training -->
<p>[Stacked bar chart]</p>
<br />
<figcaption>Breakdown per week of time to spend training in stealth, combat, and weapons.</figcaption>
</figure>
<table class="sr-only">
<caption>Hours of Weekly Training in Stealth, Combat, and Weapons</caption>
<thead>
<tr>
<th></th>
<th scope="col">Stealth &amp; Agility</th>
<th scope="col">Combat</th>
<th scope="col">Weapons</th>
<th scope="col">Total</th>
</tr>
</thead>
<tbody>
<tr>
<th scope="row">Week One</th>
<td>3</td>
<td>5</td>
<td>2</td>
<td>10</td>
</tr>
<tr>
<th scope="row">Week Two</th>
<td>4</td>
<td>5</td>
<td>3</td>
<td>12</td>
</tr>
<tr>
<th scope="row">Week Three</th>
<td>4</td>
<td>6</td>
<td>3</td>
<td>13</td>
</tr>
</tbody>
</table>
</section>
<section id="stealth">
<h2>Stealth &amp; Agility Training</h2>
<article><h3>Climb foliage quickly using a minimum spanning tree approach</h3></article>
<article><h3>No training is NP-complete without parkour</h3></article>
</section>
<section id="combat">
<h2>Combat Training</h2>
<article><h3>Dispatch multiple enemies with multithreaded tactics</h3></article>
<article><h3>Goodbye, world: 5 proven ways to knock out an opponent</h3></article>
</section>
<section id="weapons">
<h2>Weapons Training</h2>
<article><h3>Swords: the best tool to literally divide and conquer</h3></article>
<article><h3>Breadth-first or depth-first in multi-weapon training?</h3></article>
</section>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
# --solutions--
```html
<head>
<style>
.sr-only {
position: absolute;
left: -10000px;
width: 1px;
height: 1px;
top: auto;
overflow: hidden;
}
</style>
</head>
<body>
<header>
<h1>Training</h1>
<nav>
<ul>
<li><a href="#stealth">Stealth &amp; Agility</a></li>
<li><a href="#combat">Combat</a></li>
<li><a href="#weapons">Weapons</a></li>
</ul>
</nav>
</header>
<section>
<h2>Master Camper Cat's Beginner Three Week Training Program</h2>
<figure>
<!-- Stacked bar chart of weekly training -->
<p>[Stacked bar chart]</p>
<br />
<figcaption>Breakdown per week of time to spend training in stealth, combat, and weapons.</figcaption>
</figure>
<table class="sr-only">
<caption>Hours of Weekly Training in Stealth, Combat, and Weapons</caption>
<thead>
<tr>
<th></th>
<th scope="col">Stealth &amp; Agility</th>
<th scope="col">Combat</th>
<th scope="col">Weapons</th>
<th scope="col">Total</th>
</tr>
</thead>
<tbody>
<tr>
<th scope="row">Week One</th>
<td>3</td>
<td>5</td>
<td>2</td>
<td>10</td>
</tr>
<tr>
<th scope="row">Week Two</th>
<td>4</td>
<td>5</td>
<td>3</td>
<td>12</td>
</tr>
<tr>
<th scope="row">Week Three</th>
<td>4</td>
<td>6</td>
<td>3</td>
<td>13</td>
</tr>
</tbody>
</table>
</section>
<section id="stealth">
<h2>Stealth &amp; Agility Training</h2>
<article><h3>Climb foliage quickly using a minimum spanning tree approach</h3></article>
<article><h3>No training is NP-complete without parkour</h3></article>
</section>
<section id="combat">
<h2>Combat Training</h2>
<article><h3>Dispatch multiple enemies with multithreaded tactics</h3></article>
<article><h3>Goodbye, world: 5 proven ways to knock out an opponent</h3></article>
</section>
<section id="weapons">
<h2>Weapons Training</h2>
<article><h3>Swords: the best tool to literally divide and conquer</h3></article>
<article><h3>Breadth-first or depth-first in multi-weapon training?</h3></article>
</section>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/make-links-navigable-with-html-access-keys.md
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@@ -1,106 +0,0 @@
---
id: 587d7790367417b2b2512aaf
title: Make Links Navigable with HTML Access Keys
challengeType: 0
videoUrl: 'https://scrimba.com/c/cQvmaTp'
forumTopicId: 301021
dashedName: make-links-navigable-with-html-access-keys
---
# --description--
HTML offers the `accesskey` attribute to specify a shortcut key to activate or bring focus to an element. Adding an `accesskey` attribute can make navigation more efficient for keyboard-only users.
HTML5 allows this attribute to be used on any element, but it's particularly useful when it's used with interactive ones. This includes links, buttons, and form controls.
Here's an example:
```html
<button accesskey="b">Important Button</button>
```
# --instructions--
Camper Cat wants the links around the two blog article titles to have keyboard shortcuts so his site's users can quickly navigate to the full story. Add an `accesskey` attribute to both links and set the first one to `g` (for Garfield) and the second one to `c` (for Chuck Norris).
# --hints--
Your code should add an `accesskey` attribute to the `a` tag with the `id` of `first`.
```js
assert($('#first').attr('accesskey'));
```
Your code should add an `accesskey` attribute to the `a` tag with the `id` of `second`.
```js
assert($('#second').attr('accesskey'));
```
Your code should set the `accesskey` attribute on the `a` tag with the `id` of `first` to `g`. Note that case matters.
```js
assert($('#first').attr('accesskey') == 'g');
```
Your code should set the `accesskey` attribute on the `a` tag with the `id` of `second` to `c`. Note that case matters.
```js
assert($('#second').attr('accesskey') == 'c');
```
# --seed--
## --seed-contents--
```html
<body>
<header>
<h1>Deep Thoughts with Master Camper Cat</h1>
</header>
<article>
<h2><a id="first" href="#">The Garfield Files: Lasagna as Training Fuel?</a></h2>
<p>The internet is littered with varying opinions on nutritional paradigms, from catnip paleo to hairball cleanses. But let's turn our attention to an often overlooked fitness fuel, and examine the protein-carb-NOM trifecta that is lasagna...</p>
</article>
<article>
<h2><a id="second" href="#">Is Chuck Norris a Cat Person?</a></h2>
<p>Chuck Norris is widely regarded as the premier martial artist on the planet, and it's a complete coincidence that anyone who disagrees with this fact mysteriously disappears soon after. But the real question is, is he a cat person?...</p>
</article>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
# --solutions--
```html
<body>
<header>
<h1>Deep Thoughts with Master Camper Cat</h1>
</header>
<article>
<h2><a id="first" accesskey="g" href="#">The Garfield Files: Lasagna as Training Fuel?</a></h2>
<p>The internet is littered with varying opinions on nutritional paradigms, from catnip paleo to hairball cleanses. But let's turn our attention to an often overlooked fitness fuel, and examine the protein-carb-NOM trifecta that is lasagna...</p>
</article>
<article>
<h2><a id="second" accesskey="c" href="#">Is Chuck Norris a Cat Person?</a></h2>
<p>Chuck Norris is widely regarded as the premier martial artist on the planet, and it's a complete coincidence that anyone who disagrees with this fact mysteriously disappears soon after. But the real question is, is he a cat person?...</p>
</article>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/make-screen-reader-navigation-easier-with-the-footer-landmark.md
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@@ -1,116 +0,0 @@
---
id: 587d7788367417b2b2512aa3
title: Make Screen Reader Navigation Easier with the footer Landmark
challengeType: 0
videoUrl: 'https://scrimba.com/c/crVrDh8'
forumTopicId: 301022
dashedName: make-screen-reader-navigation-easier-with-the-footer-landmark
---
# --description--
Similar to `header` and `nav`, the `footer` element has a built-in landmark feature that allows assistive devices to quickly navigate to it. It's primarily used to contain copyright information or links to related documents that usually sit at the bottom of a page.
# --instructions--
Camper Cat's training page is making good progress. Change the `div` he used to wrap his copyright information at the bottom of the page to a `footer` element.
# --hints--
Your code should have one `footer` tag.
```js
assert($('footer').length == 1);
```
Your code should not have any `div` tags.
```js
assert($('div').length == 0);
```
Your code should have an opening and closing `footer` tag.
```js
assert(code.match(/<footer>\s*&copy; 2018 Camper Cat\s*<\/footer>/g));
```
# --seed--
## --seed-contents--
```html
<body>
<header>
<h1>Training</h1>
<nav>
<ul>
<li><a href="#stealth">Stealth &amp; Agility</a></li>
<li><a href="#combat">Combat</a></li>
<li><a href="#weapons">Weapons</a></li>
</ul>
</nav>
</header>
<main>
<section id="stealth">
<h2>Stealth &amp; Agility Training</h2>
<article><h3>Climb foliage quickly using a minimum spanning tree approach</h3></article>
<article><h3>No training is NP-complete without parkour</h3></article>
</section>
<section id="combat">
<h2>Combat Training</h2>
<article><h3>Dispatch multiple enemies with multithreaded tactics</h3></article>
<article><h3>Goodbye world: 5 proven ways to knock out an opponent</h3></article>
</section>
<section id="weapons">
<h2>Weapons Training</h2>
<article><h3>Swords: the best tool to literally divide and conquer</h3></article>
<article><h3>Breadth-first or depth-first in multi-weapon training?</h3></article>
</section>
</main>
<div>&copy; 2018 Camper Cat</div>
</body>
```
# --solutions--
```html
<body>
<header>
<h1>Training</h1>
<nav>
<ul>
<li><a href="#stealth">Stealth &amp; Agility</a></li>
<li><a href="#combat">Combat</a></li>
<li><a href="#weapons">Weapons</a></li>
</ul>
</nav>
</header>
<main>
<section id="stealth">
<h2>Stealth &amp; Agility Training</h2>
<article><h3>Climb foliage quickly using a minimum spanning tree approach</h3></article>
<article><h3>No training is NP-complete without parkour</h3></article>
</section>
<section id="combat">
<h2>Combat Training</h2>
<article><h3>Dispatch multiple enemies with multithreaded tactics</h3></article>
<article><h3>Goodbye world: 5 proven ways to knock out an opponent</h3></article>
</section>
<section id="weapons">
<h2>Weapons Training</h2>
<article><h3>Swords: the best tool to literally divide and conquer</h3></article>
<article><h3>Breadth-first or depth-first in multi-weapon training?</h3></article>
</section>
</main>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/make-screen-reader-navigation-easier-with-the-header-landmark.md
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@@ -1,111 +0,0 @@
---
id: 587d7787367417b2b2512aa1
title: Make Screen Reader Navigation Easier with the header Landmark
challengeType: 0
videoUrl: 'https://scrimba.com/c/cB76vtv'
forumTopicId: 301023
dashedName: make-screen-reader-navigation-easier-with-the-header-landmark
---
# --description--
The next HTML5 element that adds semantic meaning and improves accessibility is the `header` tag. It's used to wrap introductory information or navigation links for its parent tag and works well around content that's repeated at the top on multiple pages.
`header` shares the embedded landmark feature you saw with `main`, allowing assistive technologies to quickly navigate to that content.
**Note:** The `header` is meant for use in the `body` tag of your HTML document. It is different than the `head` element, which contains the page's title, meta information, etc.
# --instructions--
Camper Cat is writing some great articles about ninja training, and wants to add a page for them to his site. Change the top `div` that currently contains the `h1` to a `header` tag instead.
# --hints--
Your code should have one `header` tag.
```js
assert($('header').length == 1);
```
Your `header` tags should wrap around the `h1`.
```js
assert($('header').children('h1').length == 1);
```
Your code should not have any `div` tags.
```js
assert($('div').length == 0);
```
Your `header` element should have a closing tag.
```js
assert(
code.match(/<\/header>/g) &&
code.match(/<\/header>/g).length === code.match(/<header>/g).length
);
```
# --seed--
## --seed-contents--
```html
<body>
<div>
<h1>Training with Camper Cat</h1>
</div>
<main>
<section id="stealth">
<h2>Stealth &amp; Agility Training</h2>
<article><h3>Climb foliage quickly using a minimum spanning tree approach</h3></article>
<article><h3>No training is NP-complete without parkour</h3></article>
</section>
<section id="combat">
<h2>Combat Training</h2>
<article><h3>Dispatch multiple enemies with multithreaded tactics</h3></article>
<article><h3>Goodbye world: 5 proven ways to knock out an opponent</h3></article>
</section>
<section id="weapons">
<h2>Weapons Training</h2>
<article><h3>Swords: the best tool to literally divide and conquer</h3></article>
<article><h3>Breadth-first or depth-first in multi-weapon training?</h3></article>
</section>
</main>
</body>
```
# --solutions--
```html
<body>
<header>
<h1>Training with Camper Cat</h1>
</header>
<main>
<section id="stealth">
<h2>Stealth &amp; Agility Training</h2>
<article><h3>Climb foliage quickly using a minimum spanning tree approach</h3></article>
<article><h3>No training is NP-complete without parkour</h3></article>
</section>
<section id="combat">
<h2>Combat Training</h2>
<article><h3>Dispatch multiple enemies with multithreaded tactics</h3></article>
<article><h3>Goodbye world: 5 proven ways to knock out an opponent</h3></article>
</section>
<section id="weapons">
<h2>Weapons Training</h2>
<article><h3>Swords: the best tool to literally divide and conquer</h3></article>
<article><h3>Breadth-first or depth-first in multi-weapon training?</h3></article>
</section>
</main>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/make-screen-reader-navigation-easier-with-the-nav-landmark.md
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@@ -1,121 +0,0 @@
---
id: 587d7788367417b2b2512aa2
title: Make Screen Reader Navigation Easier with the nav Landmark
challengeType: 0
videoUrl: 'https://scrimba.com/c/czVwWSv'
forumTopicId: 301024
dashedName: make-screen-reader-navigation-easier-with-the-nav-landmark
---
# --description--
The `nav` element is another HTML5 item with the embedded landmark feature for easy screen reader navigation. This tag is meant to wrap around the main navigation links in your page.
If there are repeated site links at the bottom of the page, it isn't necessary to markup those with a `nav` tag as well. Using a `footer` (covered in the next challenge) is sufficient.
# --instructions--
Camper Cat included navigation links at the top of his training page, but wrapped them in a `div`. Change the `div` to a `nav` tag to improve the accessibility on his page.
# --hints--
Your code should have one `nav` tag.
```js
assert($('nav').length == 1);
```
Your `nav` tags should wrap around the `ul` and its list items.
```js
assert($('nav').children('ul').length == 1);
```
Your code should not have any `div` tags.
```js
assert($('div').length == 0);
```
Your `nav` element should have a closing tag.
```js
assert(
code.match(/<\/nav>/g) &&
code.match(/<\/nav>/g).length === code.match(/<nav>/g).length
);
```
# --seed--
## --seed-contents--
```html
<body>
<header>
<h1>Training with Camper Cat</h1>
<div>
<ul>
<li><a href="#stealth">Stealth &amp; Agility</a></li>
<li><a href="#combat">Combat</a></li>
<li><a href="#weapons">Weapons</a></li>
</ul>
</div>
</header>
<main>
<section id="stealth">
<h2>Stealth &amp; Agility Training</h2>
<article><h3>Climb foliage quickly using a minimum spanning tree approach</h3></article>
<article><h3>No training is NP-complete without parkour</h3></article>
</section>
<section id="combat">
<h2>Combat Training</h2>
<article><h3>Dispatch multiple enemies with multithreaded tactics</h3></article>
<article><h3>Goodbye world: 5 proven ways to knock out an opponent</h3></article>
</section>
<section id="weapons">
<h2>Weapons Training</h2>
<article><h3>Swords: the best tool to literally divide and conquer</h3></article>
<article><h3>Breadth-first or depth-first in multi-weapon training?</h3></article>
</section>
</main>
</body>
```
# --solutions--
```html
<body>
<header>
<h1>Training with Camper Cat</h1>
<nav>
<ul>
<li><a href="#stealth">Stealth &amp; Agility</a></li>
<li><a href="#combat">Combat</a></li>
<li><a href="#weapons">Weapons</a></li>
</ul>
</nav>
</header>
<main>
<section id="stealth">
<h2>Stealth &amp; Agility Training</h2>
<article><h3>Climb foliage quickly using a minimum spanning tree approach</h3></article>
<article><h3>No training is NP-complete without parkour</h3></article>
</section>
<section id="combat">
<h2>Combat Training</h2>
<article><h3>Dispatch multiple enemies with multithreaded tactics</h3></article>
<article><h3>Goodbye world: 5 proven ways to knock out an opponent</h3></article>
</section>
<section id="weapons">
<h2>Weapons Training</h2>
<article><h3>Swords: the best tool to literally divide and conquer</h3></article>
<article><h3>Breadth-first or depth-first in multi-weapon training?</h3></article>
</section>
</main>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/standardize-times-with-the-html5-datetime-attribute.md
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@@ -1,132 +0,0 @@
---
id: 587d778c367417b2b2512aa9
title: Standardize Times with the HTML5 datetime Attribute
challengeType: 0
videoUrl: 'https://scrimba.com/c/cmzMgtz'
forumTopicId: 301025
dashedName: standardize-times-with-the-html5-datetime-attribute
---
# --description--
Continuing with the date theme, HTML5 also introduced the `time` element along with a `datetime` attribute to standardize times. The `time` element is an inline element that can wrap a date or time on a page. A `datetime` attribute holds a valid format of that date. This is the value accessed by assistive devices. It helps avoid confusion by stating a standardized version of a time, even if it's informally or colloquially written in the text.
Here's an example:
```html
<p>Master Camper Cat officiated the cage match between Goro and Scorpion <time datetime="2013-02-13">last Wednesday</time>, which ended in a draw.</p>
```
# --instructions--
Camper Cat's Mortal Kombat survey results are in! Wrap a `time` tag around the text `Thursday, September 15<sup>th</sup>` and add a `datetime` attribute to it set to `2016-09-15`.
# --hints--
Your code should have a `p` element which includes the text `Thank you to everyone for responding to Master Camper Cat's survey.` and include a `time` element.
```js
assert(timeElement);
```
Your added `time` tags should wrap around the text `Thursday, September 15<sup>th</sup>`.
```js
assert(
timeElement &&
timeElement?.innerHTML?.trim() === 'Thursday, September 15<sup>th</sup>'
);
```
Your added `time` tag should have a `datetime` attribute that is not empty.
```js
assert(datetimeAttr && datetimeAttr?.length);
```
Your added `datetime` attribute should be set to a value of `2016-09-15`.
```js
assert(datetimeAttr === '2016-09-15');
```
# --seed--
## --after-user-code--
```html
<script>
const pElement = [...document.querySelectorAll("article > p")]
.filter(x => x?.textContent?.includes("Thank you to everyone for responding to Master Camper Cat's survey."));
const timeElement = pElement[0] ? pElement[0].querySelector("time") : null;
const datetimeAttr = timeElement?.getAttribute("datetime");
</script>
```
## --seed-contents--
```html
<body>
<header>
<h1>Tournaments</h1>
</header>
<article>
<h2>Mortal Kombat Tournament Survey Results</h2>
<!-- Only change code below this line -->
<p>Thank you to everyone for responding to Master Camper Cat's survey. The best day to host the vaunted Mortal Kombat tournament is Thursday, September 15<sup>th</sup>. May the best ninja win!</p>
<!-- Only change code above this line -->
<section>
<h3>Comments:</h3>
<article>
<p>Posted by: Sub-Zero on <time datetime="2016-08-13T20:01Z">August 13<sup>th</sup></time></p>
<p>Johnny Cage better be there, I'll finish him!</p>
</article>
<article>
<p>Posted by: Doge on <time datetime="2016-08-15T08:12Z">August 15<sup>th</sup></time></p>
<p>Wow, much combat, so mortal.</p>
</article>
<article>
<p>Posted by: The Grim Reaper on <time datetime="2016-08-16T00:00Z">August 16<sup>th</sup></time></p>
<p>Looks like I'll be busy that day.</p>
</article>
</section>
</article>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
# --solutions--
```html
<body>
<header>
<h1>Tournaments</h1>
</header>
<article>
<h2>Mortal Kombat Tournament Survey Results</h2>
<p>Thank you to everyone for responding to Master Camper Cat's survey. The best day to host the vaunted Mortal Kombat tournament is <time datetime="2016-09-15">Thursday, September 15<sup>th</sup></time>. May the best ninja win!</p>
<section>
<h3>Comments:</h3>
<article>
<p>Posted by: Sub-Zero on <time datetime="2016-08-13T20:01Z">August 13<sup>th</sup></time></p>
<p>Johnny Cage better be there, I'll finish him!</p>
</article>
<article>
<p>Posted by: Doge on <time datetime="2016-08-15T08:12Z">August 15<sup>th</sup></time></p>
<p>Wow, much combat, so mortal.</p>
</article>
<article>
<p>Posted by: The Grim Reaper on <time datetime="2016-08-16T00:00Z">August 16<sup>th</sup></time></p>
<p>Looks like I'll be busy that day.</p>
</article>
</section>
</article>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/use-headings-to-show-hierarchical-relationships-of-content.md
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@@ -1,92 +0,0 @@
---
id: 587d774d367417b2b2512a9e
title: Use Headings to Show Hierarchical Relationships of Content
challengeType: 0
videoUrl: 'https://scrimba.com/c/cqVEktm'
forumTopicId: 301026
dashedName: use-headings-to-show-hierarchical-relationships-of-content
---
# --description--
Headings (`h1` through `h6` elements) are workhorse tags that help provide structure and labeling to your content. Screen readers can be set to read only the headings on a page so the user gets a summary. This means it is important for the heading tags in your markup to have semantic meaning and relate to each other, not be picked merely for their size values.
*Semantic meaning* means that the tag you use around content indicates the type of information it contains.
If you were writing a paper with an introduction, a body, and a conclusion, it wouldn't make much sense to put the conclusion as a subsection of the body in your outline. It should be its own section. Similarly, the heading tags in a webpage need to go in order and indicate the hierarchical relationships of your content.
Headings with equal (or higher) rank start new implied sections, headings with lower rank start subsections of the previous one.
As an example, a page with an `h2` element followed by several subsections labeled with `h4` elements would confuse a screen reader user. With six choices, it's tempting to use a tag because it looks better in a browser, but you can use CSS to edit the relative sizing.
One final point, each page should always have one (and only one) `h1` element, which is the main subject of your content. This and the other headings are used in part by search engines to understand the topic of the page.
# --instructions--
Camper Cat wants a page on his site dedicated to becoming a ninja. Help him fix the headings so his markup gives semantic meaning to the content, and shows the proper parent-child relationships of his sections. Change all the `h5` tags to the proper heading level to indicate they are subsections of the `h2` ones. Use `h3` tags for the purpose.
# --hints--
Your code should have 6 `h3` elements.
```js
assert($('h3').length === 6);
```
Your code should have 6 `h3` closing tags.
```js
assert((code.match(/\/h3/g) || []).length === 6);
```
Your code should not have any `h5` elements.
```js
assert($('h5').length === 0);
```
Your code should not have any `h5` closing tags.
```js
assert(/\/h5/.test(code) === false);
```
# --seed--
## --seed-contents--
```html
<h1>How to Become a Ninja</h1>
<main>
<h2>Learn the Art of Moving Stealthily</h2>
<h5>How to Hide in Plain Sight</h5>
<h5>How to Climb a Wall</h5>
<h2>Learn the Art of Battle</h2>
<h5>How to Strengthen your Body</h5>
<h5>How to Fight like a Ninja</h5>
<h2>Learn the Art of Living with Honor</h2>
<h5>How to Breathe Properly</h5>
<h5>How to Simplify your Life</h5>
</main>
```
# --solutions--
```html
<h1>How to Become a Ninja</h1>
<main>
<h2>Learn the Art of Moving Stealthily</h2>
<h3>How to Hide in Plain Sight</h3>
<h3>How to Climb a Wall</h3>
<h2>Learn the Art of Battle</h2>
<h3>How to Strengthen your Body</h3>
<h3>How to Fight like a Ninja</h3>
<h2>Learn the Art of Living with Honor</h2>
<h3>How to Breathe Properly</h3>
<h3>How to Simplify your Life</h3>
</main>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/use-tabindex-to-add-keyboard-focus-to-an-element.md
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@@ -1,144 +0,0 @@
---
id: 587d7790367417b2b2512ab0
title: Use tabindex to Add Keyboard Focus to an Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/cmzMDHW'
forumTopicId: 301027
dashedName: use-tabindex-to-add-keyboard-focus-to-an-element
---
# --description--
The HTML `tabindex` attribute has three distinct functions relating to an element's keyboard focus. When it's on a tag, it indicates that the element can be focused on. The value (an integer that's positive, negative, or zero) determines the behavior.
Certain elements, such as links and form controls, automatically receive keyboard focus when a user tabs through a page. It's in the same order as the elements come in the HTML source markup. This same functionality can be given to other elements, such as `div`, `span`, and `p`, by placing a `tabindex="0"` attribute on them. Here's an example:
```html
<div tabindex="0">I need keyboard focus!</div>
```
**Note:** A negative `tabindex` value (typically -1) indicates that an element is focusable, but is not reachable by the keyboard. This method is generally used to bring focus to content programmatically (like when a `div` used for a pop-up window is activated), and is beyond the scope of these challenges.
# --instructions--
Camper Cat created a new survey to collect information about his users. He knows input fields automatically get keyboard focus, but he wants to make sure his keyboard users pause at the instructions while tabbing through the items. Add a `tabindex` attribute to the `p` tag and set its value to `0`. Bonus - using `tabindex` also enables the CSS pseudo-class `:focus` to work on the `p` tag.
# --hints--
Your code should add a `tabindex` attribute to the `p` tag that holds the form instructions.
```js
assert($('p').attr('tabindex'));
```
Your code should set the `tabindex` attribute on the `p` tag to a value of 0.
```js
assert($('p').attr('tabindex') == '0');
```
# --seed--
## --seed-contents--
```html
<head>
<style>
p:focus {
background-color: yellow;
}
</style>
</head>
<body>
<header>
<h1>Ninja Survey</h1>
</header>
<section>
<form>
<p>Instructions: Fill in ALL your information then click <b>Submit</b></p>
<label for="username">Username:</label>
<input type="text" id="username" name="username"><br>
<fieldset>
<legend>What level ninja are you?</legend>
<input id="newbie" type="radio" name="levels" value="newbie">
<label for="newbie">Newbie Kitten</label><br>
<input id="intermediate" type="radio" name="levels" value="intermediate">
<label for="intermediate">Developing Student</label><br>
<input id="master" type="radio" name="levels" value="master">
<label for="master">9th Life Master</label>
</fieldset>
<br>
<fieldset>
<legend>Select your favorite weapons:</legend>
<input id="stars" type="checkbox" name="weapons" value="stars">
<label for="stars">Throwing Stars</label><br>
<input id="nunchucks" type="checkbox" name="weapons" value="nunchucks">
<label for="nunchucks">Nunchucks</label><br>
<input id="sai" type="checkbox" name="weapons" value="sai">
<label for="sai">Sai Set</label><br>
<input id="sword" type="checkbox" name="weapons" value="sword">
<label for="sword">Sword</label>
</fieldset>
<br>
<input type="submit" name="submit" value="Submit">
</form><br>
</section>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
# --solutions--
```html
<head>
<style>
p:focus {
background-color: yellow;
}
</style>
</head>
<body>
<header>
<h1>Ninja Survey</h1>
</header>
<section>
<form>
<p tabindex="0">Instructions: Fill in ALL your information then click <b>Submit</b></p>
<label for="username">Username:</label>
<input type="text" id="username" name="username"><br>
<fieldset>
<legend>What level ninja are you?</legend>
<input id="newbie" type="radio" name="levels" value="newbie">
<label for="newbie">Newbie Kitten</label><br>
<input id="intermediate" type="radio" name="levels" value="intermediate">
<label for="intermediate">Developing Student</label><br>
<input id="master" type="radio" name="levels" value="master">
<label for="master">9th Life Master</label>
</fieldset>
<br>
<fieldset>
<legend>Select your favorite weapons:</legend>
<input id="stars" type="checkbox" name="weapons" value="stars">
<label for="stars">Throwing Stars</label><br>
<input id="nunchucks" type="checkbox" name="weapons" value="nunchucks">
<label for="nunchucks">Nunchucks</label><br>
<input id="sai" type="checkbox" name="weapons" value="sai">
<label for="sai">Sai Set</label><br>
<input id="sword" type="checkbox" name="weapons" value="sword">
<label for="sword">Sword</label>
</fieldset>
<br>
<input type="submit" name="submit" value="Submit">
</form><br>
</section>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/use-tabindex-to-specify-the-order-of-keyboard-focus-for-several-elements.md
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@@ -1,160 +0,0 @@
---
id: 587d7790367417b2b2512ab1
title: Use tabindex to Specify the Order of Keyboard Focus for Several Elements
challengeType: 0
videoUrl: 'https://scrimba.com/c/cmzRRcb'
forumTopicId: 301028
dashedName: use-tabindex-to-specify-the-order-of-keyboard-focus-for-several-elements
---
# --description--
The `tabindex` attribute also specifies the exact tab order of elements. This is achieved when the attribute's value is set to a positive number of 1 or higher.
Setting a `tabindex="1"` will bring keyboard focus to that element first. Then it cycles through the sequence of specified `tabindex` values (2, 3, etc.), before moving to default and `tabindex="0"` items.
It's important to note that when the tab order is set this way, it overrides the default order (which uses the HTML source). This may confuse users who are expecting to start navigation from the top of the page. This technique may be necessary in some circumstances, but in terms of accessibility, take care before applying it.
Here's an example:
```html
<div tabindex="1">I get keyboard focus, and I get it first!</div>
```
```html
<div tabindex="2">I get keyboard focus, and I get it second!</div>
```
# --instructions--
Camper Cat has a search field on his Inspirational Quotes page that he plans to position in the upper right corner with CSS. He wants the search `input` and submit `input` form controls to be the first two items in the tab order. Add a `tabindex` attribute set to `1` to the `search` `input`, and a `tabindex` attribute set to `2` to the `submit` `input`.
Another thing to note is that some browsers may place you in the middle of your tab order when an element is clicked. An element has been added to the page that ensures you will always start at the beginning of your tab order.
# --hints--
Your code should add a `tabindex` attribute to the `search` `input` tag.
```js
assert($('#search').attr('tabindex'));
```
Your code should add a `tabindex` attribute to the `submit` `input` tag.
```js
assert($('#submit').attr('tabindex'));
```
Your code should set the `tabindex` attribute on the `search` `input` tag to a value of 1.
```js
assert($('#search').attr('tabindex') == '1');
```
Your code should set the `tabindex` attribute on the `submit` `input` tag to a value of 2.
```js
assert($('#submit').attr('tabindex') == '2');
```
# --seed--
## --seed-contents--
```html
<body>
<div tabindex="1" class="overlay"></div>
<header>
<h1>Even Deeper Thoughts with Master Camper Cat</h1>
<nav>
<ul>
<li><a href="">Home</a></li>
<li><a href="">Blog</a></li>
<li><a href="">Training</a></li>
</ul>
</nav>
</header>
<form>
<label for="search">Search:</label>
<input type="search" name="search" id="search">
<input type="submit" name="submit" value="Submit" id="submit">
</form>
<h2>Inspirational Quotes</h2>
<blockquote>
<p>&ldquo;There's no Theory of Evolution, just a list of creatures I've allowed to live.&rdquo;<br>
- Chuck Norris</p>
</blockquote>
<blockquote>
<p>&ldquo;Wise men say forgiveness is divine, but never pay full price for late pizza.&rdquo;<br>
- TMNT</p>
</blockquote>
<footer>&copy; 2018 Camper Cat</footer>
</body>
<style>
body {
height: 100%;
margin: 0 !important;
padding: 8px;
}
.overlay {
margin: -8px;
position: absolute;
width: 100%;
height: 100%;
}
</style>
```
# --solutions--
```html
<body>
<div tabindex="1" class="overlay"></div>
<header>
<h1>Even Deeper Thoughts with Master Camper Cat</h1>
<nav>
<ul>
<li><a href="">Home</a></li>
<li><a href="">Blog</a></li>
<li><a href="">Training</a></li>
</ul>
</nav>
</header>
<form>
<label for="search">Search:</label>
<input tabindex="1" type="search" name="search" id="search">
<input tabindex="2" type="submit" name="submit" value="Submit" id="submit">
</form>
<h2>Inspirational Quotes</h2>
<blockquote>
<p>&ldquo;There's no Theory of Evolution, just a list of creatures I've allowed to live.&rdquo;<br>
- Chuck Norris</p>
</blockquote>
<blockquote>
<p>&ldquo;Wise men say forgiveness is divine, but never pay full price for late pizza.&rdquo;<br>
- TMNT</p>
</blockquote>
<footer>&copy; 2018 Camper Cat</footer>
</body>
<style>
body {
height: 100%;
margin: 0 !important;
padding: 8px;
}
.overlay {
margin: -8px;
position: absolute;
width: 100%;
height: 100%;
}
</style>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/wrap-content-in-the-article-element.md
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@@ -1,94 +0,0 @@
---
id: 587d774e367417b2b2512aa0
title: Wrap Content in the article Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/cPp79S3'
forumTopicId: 301029
dashedName: wrap-content-in-the-article-element
---
# --description--
`article` is another one of the new HTML5 elements that add semantic meaning to your markup. `article` is a sectioning element and is used to wrap independent, self-contained content. The tag works well with blog entries, forum posts, or news articles.
Determining whether content can stand alone is usually a judgment call, but you can use a couple of simple tests. Ask yourself if you removed all surrounding context, would that content still make sense? Similarly, for text, would the content hold up if it were in an RSS feed?
Remember that folks using assistive technologies rely on organized, semantically meaningful markup to better understand your work.
**Note:** The `section` element is also new with HTML5, and has a slightly different semantic meaning than `article`. An `article` is for standalone content, and a `section` is for grouping thematically related content. They can be used within each other, as needed. For example, if a book is the `article`, then each chapter is a `section`. When there's no relationship between groups of content, then use a `div`.
`<div>` - groups content
`<section>` - groups related content
`<article>` - groups independent, self-contained content
# --instructions--
Camper Cat used `article` tags to wrap the posts on his blog page, but he forgot to use them around the top one. Change the `div` tag to use an `article` tag instead.
# --hints--
Your code should have three `article` tags.
```js
assert($('article').length == 3);
```
Your code should not have any `div` tags.
```js
assert($('div').length == 0);
```
# --seed--
## --seed-contents--
```html
<h1>Deep Thoughts with Master Camper Cat</h1>
<main>
<div>
<h2>The Garfield Files: Lasagna as Training Fuel?</h2>
<p>The internet is littered with varying opinions on nutritional paradigms, from catnip paleo to hairball cleanses. But let's turn our attention to an often overlooked fitness fuel, and examine the protein-carb-NOM trifecta that is lasagna...</p>
</div>
<img src="samuraiSwords.jpeg" alt="">
<article>
<h2>Defeating your Foe: the Red Dot is Ours!</h2>
<p>Felines the world over have been waging war on the most persistent of foes. This red nemesis combines both cunning stealth and lightning speed. But chin up, fellow fighters, our time for victory may soon be near...</p>
</article>
<img src="samuraiSwords.jpeg" alt="">
<article>
<h2>Is Chuck Norris a Cat Person?</h2>
<p>Chuck Norris is widely regarded as the premier martial artist on the planet, and it's a complete coincidence that anyone who disagrees with this fact mysteriously disappears soon after. But the real question is, is he a cat person?...</p>
</article>
</main>
```
# --solutions--
```html
<h1>Deep Thoughts with Master Camper Cat</h1>
<main>
<article>
<h2>The Garfield Files: Lasagna as Training Fuel?</h2>
<p>The internet is littered with varying opinions on nutritional paradigms, from catnip paleo to hairball cleanses. But let's turn our attention to an often overlooked fitness fuel, and examine the protein-carb-NOM trifecta that is lasagna...</p>
</article>
<img src="samuraiSwords.jpeg" alt="">
<article>
<h2>Defeating your Foe: the Red Dot is Ours!</h2>
<p>Felines the world over have been waging war on the most persistent of foes. This red nemesis combines both cunning stealth and lightning speed. But chin up, fellow fighters, our time for victory may soon be near...</p>
</article>
<img src="samuraiSwords.jpeg" alt="">
<article>
<h2>Is Chuck Norris a Cat Person?</h2>
<p>Chuck Norris is widely regarded as the premier martial artist on the planet, and it's a complete coincidence that anyone who disagrees with this fact mysteriously disappears soon after. But the real question is, is he a cat person?...</p>
</article>
</main>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-accessibility/wrap-radio-buttons-in-a-fieldset-element-for-better-accessibility.md
-165
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@@ -1,165 +0,0 @@
---
id: 587d778b367417b2b2512aa7
title: Wrap Radio Buttons in a fieldset Element for Better Accessibility
challengeType: 0
videoUrl: 'https://scrimba.com/c/cVJVefw'
forumTopicId: 301030
dashedName: wrap-radio-buttons-in-a-fieldset-element-for-better-accessibility
---
# --description--
The next form topic covers the accessibility of radio buttons. Each choice is given a `label` with a `for` attribute tying to the `id` of the corresponding item as covered in the last challenge. Since radio buttons often come in a group where the user must choose one, there's a way to semantically show the choices are part of a set.
The `fieldset` tag surrounds the entire grouping of radio buttons to achieve this. It often uses a `legend` tag to provide a description for the grouping, which screen readers read for each choice in the `fieldset` element.
The `fieldset` wrapper and `legend` tag are not necessary when the choices are self-explanatory, like a gender selection. Using a `label` with the `for` attribute for each radio button is sufficient.
Here's an example:
```html
<form>
<fieldset>
<legend>Choose one of these three items:</legend>
<input id="one" type="radio" name="items" value="one">
<label for="one">Choice One</label><br>
<input id="two" type="radio" name="items" value="two">
<label for="two">Choice Two</label><br>
<input id="three" type="radio" name="items" value="three">
<label for="three">Choice Three</label>
</fieldset>
</form>
```
# --instructions--
Camper Cat wants information about the ninja level of his users when they sign up for his email list. He's added a set of radio buttons and learned from our last lesson to use `label` tags with `for` attributes for each choice. Go Camper Cat! However, his code still needs some help. Change the `div` tag surrounding the radio buttons to a `fieldset` tag, and change the `p` tag inside it to a `legend`.
# --hints--
Your code should have a `fieldset` tag around the radio button set.
```js
assert($('fieldset').length == 1);
```
The `fieldset` element should have a closing tag.
```js
assert(
code.match(/<\/fieldset>/g) &&
code.match(/<\/fieldset>/g).length === code.match(/<fieldset>/g).length
);
```
Your code should have a `legend` tag around the text asking what level ninja a user is.
```js
assert($('legend').length == 1);
```
Your code should not have any `div` tags.
```js
assert($('div').length == 0);
```
Your code should no longer have a `p` tag around the text asking what level ninja a user is.
```js
assert($('p').length == 4);
```
# --seed--
## --seed-contents--
```html
<body>
<header>
<h1>Deep Thoughts with Master Camper Cat</h1>
</header>
<section>
<form>
<p>Sign up to receive Camper Cat's blog posts by email here!</p>
<label for="email">Email:</label>
<input type="text" id="email" name="email">
<!-- Only change code below this line -->
<div>
<p>What level ninja are you?</p>
<input id="newbie" type="radio" name="levels" value="newbie">
<label for="newbie">Newbie Kitten</label><br>
<input id="intermediate" type="radio" name="levels" value="intermediate">
<label for="intermediate">Developing Student</label><br>
<input id="master" type="radio" name="levels" value="master">
<label for="master">Master</label>
</div>
<!-- Only change code above this line -->
<input type="submit" name="submit" value="Submit">
</form>
</section>
<article>
<h2>The Garfield Files: Lasagna as Training Fuel?</h2>
<p>The internet is littered with varying opinions on nutritional paradigms, from catnip paleo to hairball cleanses. But let's turn our attention to an often overlooked fitness fuel, and examine the protein-carb-NOM trifecta that is lasagna...</p>
</article>
<img src="samuraiSwords.jpeg" alt="">
<article>
<h2>Defeating your Foe: the Red Dot is Ours!</h2>
<p>Felines the world over have been waging war on the most persistent of foes. This red nemesis combines both cunning stealth and lightning speed. But chin up, fellow fighters, our time for victory may soon be near...</p>
</article>
<img src="samuraiSwords.jpeg" alt="">
<article>
<h2>Is Chuck Norris a Cat Person?</h2>
<p>Chuck Norris is widely regarded as the premier martial artist on the planet, and it's a complete coincidence that anyone who disagrees with this fact mysteriously disappears soon after. But the real question is, is he a cat person?...</p>
</article>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
# --solutions--
```html
<body>
<header>
<h1>Deep Thoughts with Master Camper Cat</h1>
</header>
<section>
<form>
<p>Sign up to receive Camper Cat's blog posts by email here!</p>
<label for="email">Email:</label>
<input type="text" id="email" name="email">
<fieldset>
<legend>What level ninja are you?</legend>
<input id="newbie" type="radio" name="levels" value="newbie">
<label for="newbie">Newbie Kitten</label><br>
<input id="intermediate" type="radio" name="levels" value="intermediate">
<label for="intermediate">Developing Student</label><br>
<input id="master" type="radio" name="levels" value="master">
<label for="master">Master</label>
</fieldset>
<input type="submit" name="submit" value="Submit">
</form>
</section>
<article>
<h2>The Garfield Files: Lasagna as Training Fuel?</h2>
<p>The internet is littered with varying opinions on nutritional paradigms, from catnip paleo to hairball cleanses. But let's turn our attention to an often overlooked fitness fuel, and examine the protein-carb-NOM trifecta that is lasagna...</p>
</article>
<img src="samuraiSwords.jpeg" alt="">
<article>
<h2>Defeating your Foe: the Red Dot is Ours!</h2>
<p>Felines the world over have been waging war on the most persistent of foes. This red nemesis combines both cunning stealth and lightning speed. But chin up, fellow fighters, our time for victory may soon be near...</p>
</article>
<img src="samuraiSwords.jpeg" alt="">
<article>
<h2>Is Chuck Norris a Cat Person?</h2>
<p>Chuck Norris is widely regarded as the premier martial artist on the planet, and it's a complete coincidence that anyone who disagrees with this fact mysteriously disappears soon after. But the real question is, is he a cat person?...</p>
</article>
<footer>&copy; 2018 Camper Cat</footer>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/add-a-box-shadow-to-a-card-like-element.md
-154
View File
@@ -1,154 +0,0 @@
---
id: 587d781b367417b2b2512abe
title: Add a box-shadow to a Card-like Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/cvVZdUd'
forumTopicId: 301031
dashedName: add-a-box-shadow-to-a-card-like-element
---
# --description--
The `box-shadow` property applies one or more shadows to an element.
The `box-shadow` property takes the following values, in order:
<ul>
<li><code>offset-x</code> (how far to push the shadow horizontally from the element)</li>
<li><code>offset-y</code> (how far to push the shadow vertically from the element)</li>
<li><code>blur-radius</code></li>
<li><code>spread-radius</code></li>
<li><code>color</code></li>
</ul>
The `blur-radius` and `spread-radius` values are optional.
Multiple box-shadows can be created by using commas to separate properties of each `box-shadow` element.
Here's an example of the CSS to create multiple shadows with some blur, at mostly-transparent black colors:
```css
box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
```
# --instructions--
The element now has an id of `thumbnail`. With this selector, use the example CSS values above to place a `box-shadow` on the card.
# --hints--
Your code should add a `box-shadow` property for the `thumbnail` id.
```js
assert(code.match(/#thumbnail\s*?{\s*?box-shadow/g));
```
You should use the given CSS for the `box-shadow` value.
```js
assert(
code.match(
/box-shadow:\s*?0\s+?10px\s+?20px\s+?rgba\(\s*?0\s*?,\s*?0\s*?,\s*?0\s*?,\s*?0?\.19\)\s*?,\s*?0\s+?6px\s+?6px\s+?rgba\(\s*?0\s*?,\s*?0\s*?,\s*?0\s*?,\s*?0?\.23\)/gi
)
);
```
# --seed--
## --seed-contents--
```html
<style>
h4 {
text-align: center;
background-color: rgba(45, 45, 45, 0.1);
padding: 10px;
font-size: 27px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard" id="thumbnail">
<div class="cardContent">
<div class="cardText">
<h4>Alphabet</h4>
<hr>
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
# --solutions--
```html
<style>
h4 {
text-align: center;
background-color: rgba(45, 45, 45, 0.1);
padding: 10px;
font-size: 27px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
#thumbnail {
box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard" id="thumbnail">
<div class="cardContent">
<div class="cardText">
<h4>Alphabet</h4>
<hr>
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/adjust-the-background-color-property-of-text.md
-146
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@@ -1,146 +0,0 @@
---
id: 587d781b367417b2b2512abc
title: Adjust the background-color Property of Text
challengeType: 0
videoUrl: 'https://scrimba.com/c/cEDqwA6'
forumTopicId: 301032
dashedName: adjust-the-background-color-property-of-text
---
# --description--
Instead of adjusting your overall background or the color of the text to make the foreground easily readable, you can add a `background-color` to the element holding the text you want to emphasize. This challenge uses `rgba()` instead of `hex` codes or normal `rgb()`.
<blockquote>rgba stands for:<br>  r = red<br>  g = green<br>  b = blue<br>  a = alpha/level of opacity</blockquote>
The RGB values can range from 0 to 255. The alpha value can range from 1, which is fully opaque or a solid color, to 0, which is fully transparent or clear. `rgba()` is great to use in this case, as it allows you to adjust the opacity. This means you don't have to completely block out the background.
You'll use `background-color: rgba(45, 45, 45, 0.1)` for this challenge. It produces a dark gray color that is nearly transparent given the low opacity value of 0.1.
# --instructions--
To make the text stand out more, adjust the `background-color` of the `h4` element to the given `rgba()` value.
Also for the `h4`, remove the `height` property and add `padding` of 10px.
# --hints--
Your code should add a `background-color` property to the `h4` element set to `rgba(45, 45, 45, 0.1)`.
```js
assert(
/(background-color|background):rgba\(45,45,45,0?\.1\)(;?}|;)/gi.test(
code.replace(/\s/g, '')
)
);
```
Your code should add a `padding` property to the `h4` element and set it to 10 pixels.
```js
assert(
$('h4').css('padding-top') == '10px' &&
$('h4').css('padding-right') == '10px' &&
$('h4').css('padding-bottom') == '10px' &&
$('h4').css('padding-left') == '10px'
);
```
The `height` property on the `h4` element should be removed.
```js
assert(!($('h4').css('height') == '25px'));
```
# --seed--
## --seed-contents--
```html
<style>
h4 {
text-align: center;
height: 25px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Alphabet</h4>
<hr>
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
# --solutions--
```html
<style>
h4 {
text-align: center;
padding: 10px;
background-color: rgba(45, 45, 45, 0.1);
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Alphabet</h4>
<hr>
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/adjust-the-color-of-various-elements-to-complementary-colors.md
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@@ -1,130 +0,0 @@
---
id: 587d78a4367417b2b2512ad3
title: Adjust the Color of Various Elements to Complementary Colors
challengeType: 0
videoUrl: 'https://scrimba.com/c/cWmPpud'
forumTopicId: 301033
dashedName: adjust-the-color-of-various-elements-to-complementary-colors
---
# --description--
The Complementary Colors challenge showed that opposite colors on the color wheel can make each other appear more vibrant when placed side-by-side. However, the strong visual contrast can be jarring if it's overused on a website, and can sometimes make text harder to read if it's placed on a complementary-colored background. In practice, one of the colors is usually dominant and the complement is used to bring visual attention to certain content on the page.
# --instructions--
This page will use a shade of teal (`#09A7A1`) as the dominant color, and its orange (`#FF790E`) complement to visually highlight the sign-up buttons. Change the `background-color` of both the `header` and `footer` from black to the teal color. Then change the `h2` text `color` to teal as well. Finally, change the `background-color` of the `button` to the orange color.
# --hints--
The `header` element should have a `background-color` of #09A7A1.
```js
assert($('header').css('background-color') == 'rgb(9, 167, 161)');
```
The `footer` element should have a `background-color` of #09A7A1.
```js
assert($('footer').css('background-color') == 'rgb(9, 167, 161)');
```
The `h2` element should have a `color` of #09A7A1.
```js
assert($('h2').css('color') == 'rgb(9, 167, 161)');
```
The `button` element should have a `background-color` of #FF790E.
```js
assert($('button').css('background-color') == 'rgb(255, 121, 14)');
```
# --seed--
## --seed-contents--
```html
<style>
body {
background-color: white;
}
header {
background-color: black;
color: white;
padding: 0.25em;
}
h2 {
color: black;
}
button {
background-color: white;
}
footer {
background-color: black;
color: white;
padding: 0.5em;
}
</style>
<header>
<h1>Cooking with FCC!</h1>
</header>
<main>
<article>
<h2>Machine Learning in the Kitchen</h2>
<p>Join this two day workshop that walks through how to implement cutting-edge snack-getting algorithms with a command line interface. Coding usually involves writing exact instructions, but sometimes you need your computer to execute flexible commands, like <code>fetch Pringles</code>.</p>
<button>Sign Up</button>
</article>
<article>
<h2>Bisection Vegetable Chopping</h2>
<p>This week-long retreat will level-up your coding ninja skills to actual ninja skills. No longer is the humble bisection search limited to sorted arrays or coding interview questions, applying its concepts in the kitchen will have you chopping carrots in O(log n) time before you know it.</p>
<button>Sign Up</button>
</article>
</main>
<br>
<footer>&copy; 2018 FCC Kitchen</footer>
```
# --solutions--
```html
<style>
body {
background-color: white;
}
header {
background-color: #09A7A1;
color: white;
padding: 0.25em;
}
h2 {
color: #09A7A1;
}
button {
background-color: #FF790E;
}
footer {
background-color: #09A7A1;
color: white;
padding: 0.5em;
}
</style>
<header>
<h1>Cooking with FCC!</h1>
</header>
<main>
<article>
<h2>Machine Learning in the Kitchen</h2>
<p>Join this two day workshop that walks through how to implement cutting-edge snack-getting algorithms with a command line interface. Coding usually involves writing exact instructions, but sometimes you need your computer to execute flexible commands, like <code>fetch Pringles</code>.</p>
<button>Sign Up</button>
</article>
<article>
<h2>Bisection Vegetable Chopping</h2>
<p>This week-long retreat will level-up your coding ninja skills to actual ninja skills. No longer is the humble bisection search limited to sorted arrays or coding interview questions, applying its concepts in the kitchen will have you chopping carrots in O(log n) time before you know it.</p>
<button>Sign Up</button>
</article>
</main>
<br>
<footer>&copy; 2018 FCC Kitchen</footer>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/adjust-the-height-of-an-element-using-the-height-property.md
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@@ -1,118 +0,0 @@
---
id: 587d7791367417b2b2512ab5
title: Adjust the Height of an Element Using the height Property
challengeType: 0
videoUrl: 'https://scrimba.com/c/cEDaDTN'
forumTopicId: 301034
dashedName: adjust-the-height-of-an-element-using-the-height-property
---
# --description--
You can specify the height of an element using the `height` property in CSS, similar to the `width` property. Here's an example that changes the height of an image to 20px:
```css
img {
height: 20px;
}
```
# --instructions--
Add a `height` property to the `h4` tag and set it to 25px.
**Note:** You may need to be at 100% zoom to pass the test on this challenge.
# --hints--
Your code should change the `h4` `height` property to a value of 25 pixels.
```js
assert(
Math.round(document.querySelector('h4').getBoundingClientRect().height) ===
25 &&
/h4{\S*height:25px(;\S*}|})/.test($('style').text().replace(/\s/g, ''))
);
```
# --seed--
## --seed-contents--
```html
<style>
h4 {
text-align: center;
}
p {
text-align: justify;
}
.links {
margin-right: 20px;
text-align: left;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Google</h4>
<p>Google was founded by Larry Page and Sergey Brin while they were Ph.D. students at Stanford University.</p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
# --solutions--
```html
<style>
h4 {
text-align: center;
height: 25px;
}
p {
text-align: justify;
}
.links {
margin-right: 20px;
text-align: left;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Google</h4>
<p>Google was founded by Larry Page and Sergey Brin while they were Ph.D. students at Stanford University.</p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/adjust-the-hover-state-of-an-anchor-tag.md
-72
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@@ -1,72 +0,0 @@
---
id: 587d781d367417b2b2512ac8
title: Adjust the Hover State of an Anchor Tag
challengeType: 0
videoUrl: 'https://scrimba.com/c/cakRGcm'
forumTopicId: 301035
dashedName: adjust-the-hover-state-of-an-anchor-tag
---
# --description--
This challenge will touch on the usage of pseudo-classes. A pseudo-class is a keyword that can be added to selectors, in order to select a specific state of the element.
For example, the styling of an anchor tag can be changed for its hover state using the `:hover` pseudo-class selector. Here's the CSS to change the `color` of the anchor tag to red during its hover state:
```css
a:hover {
color: red;
}
```
# --instructions--
The code editor has a CSS rule to style all `a` tags black. Add a rule so that when the user hovers over the `a` tag, the `color` is blue.
# --hints--
The anchor tag `color` should remain black, only add CSS rules for the `:hover` state.
```js
assert($('a').css('color') == 'rgb(0, 0, 0)');
```
The anchor tag should have a `color` of blue on hover.
```js
assert(
code.match(
/a:hover\s*?{\s*?color:\s*?(blue|rgba\(\s*?0\s*?,\s*?0\s*?,\s*?255\s*?,\s*?1\s*?\)|#00F|rgb\(\s*?0\s*?,\s*?0\s*?,\s*?255\s*?\))\s*?;\s*?}/gi
)
);
```
# --seed--
## --seed-contents--
```html
<style>
a {
color: #000;
}
</style>
<a href="https://freecatphotoapp.com/" target="_blank">CatPhotoApp</a>
```
# --solutions--
```html
<style>
a {
color: #000;
}
a:hover {
color: rgba(0,0,255,1);
}
</style>
<a href="https://freecatphotoapp.com/" target="_blank">CatPhotoApp</a>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/adjust-the-hue-of-a-color.md
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@@ -1,129 +0,0 @@
---
id: 587d78a4367417b2b2512ad4
title: Adjust the Hue of a Color
challengeType: 0
videoUrl: 'https://scrimba.com/c/cPp38TZ'
forumTopicId: 301036
dashedName: adjust-the-hue-of-a-color
---
# --description--
Colors have several characteristics including hue, saturation, and lightness. CSS3 introduced the `hsl()` function as an alternative way to pick a color by directly stating these characteristics.
**Hue** is what people generally think of as 'color'. If you picture a spectrum of colors starting with red on the left, moving through green in the middle, and blue on right, the hue is where a color fits along this line. In `hsl()`, hue uses a color wheel concept instead of the spectrum, where the angle of the color on the circle is given as a value between 0 and 360.
**Saturation** is the amount of gray in a color. A fully saturated color has no gray in it, and a minimally saturated color is almost completely gray. This is given as a percentage with 100% being fully saturated.
**Lightness** is the amount of white or black in a color. A percentage is given ranging from 0% (black) to 100% (white), where 50% is the normal color.
Here are a few examples of using `hsl()` with fully-saturated, normal lightness colors:
<table><thead><tr><th>Color</th><th>HSL</th></tr></thead><tbody><tr><td>red</td><td>hsl(0, 100%, 50%)</td></tr><tr><td>yellow</td><td>hsl(60, 100%, 50%)</td></tr><tr><td>green</td><td>hsl(120, 100%, 50%)</td></tr><tr><td>cyan</td><td>hsl(180, 100%, 50%)</td></tr><tr><td>blue</td><td>hsl(240, 100%, 50%)</td></tr><tr><td>magenta</td><td>hsl(300, 100%, 50%)</td></tr></tbody></table>
# --instructions--
Change the `background-color` of each `div` element based on the class names (`green`, `cyan`, or `blue`) using `hsl()`. All three should have full saturation and normal lightness.
# --hints--
Your code should use the `hsl()` function to declare the color green.
```js
assert(code.match(/\.green\s*?{\s*?background-color\s*:\s*?hsl/gi));
```
Your code should use the `hsl()` function to declare the color cyan.
```js
assert(code.match(/\.cyan\s*?{\s*?background-color\s*:\s*?hsl/gi));
```
Your code should use the `hsl()` function to declare the color blue.
```js
assert(code.match(/\.blue\s*?{\s*?background-color\s*:\s*?hsl/gi));
```
The `div` element with class `green` should have a `background-color` of green.
```js
assert($('.green').css('background-color') == 'rgb(0, 255, 0)');
```
The `div` element with class `cyan` should have a `background-color` of cyan.
```js
assert($('.cyan').css('background-color') == 'rgb(0, 255, 255)');
```
The `div` element with class `blue` should have a `background-color` of blue.
```js
assert($('.blue').css('background-color') == 'rgb(0, 0, 255)');
```
# --seed--
## --seed-contents--
```html
<style>
body {
background-color: #FFFFFF;
}
.green {
background-color: #000000;
}
.cyan {
background-color: #000000;
}
.blue {
background-color: #000000;
}
div {
display: inline-block;
height: 100px;
width: 100px;
}
</style>
<div class="green"></div>
<div class="cyan"></div>
<div class="blue"></div>
```
# --solutions--
```html
<style>
body {
background-color: #FFFFFF;
}
.green {
background-color: hsl(120, 100%, 50%);
}
.cyan {
background-color: hsl(180, 100%, 50%);
}
.blue {
background-color: hsl(240, 100%, 50%);
}
div {
display: inline-block;
height: 100px;
width: 100px;
}
</style>
<div class="green"></div>
<div class="cyan"></div>
<div class="blue"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/adjust-the-size-of-a-heading-element-versus-a-paragraph-element.md
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@@ -1,119 +0,0 @@
---
id: 587d781b367417b2b2512abd
title: Adjust the Size of a Heading Element Versus a Paragraph Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/c3bRPTz'
forumTopicId: 301037
dashedName: adjust-the-size-of-a-heading-element-versus-a-paragraph-element
---
# --description--
The font size of heading elements (`h1` through `h6`) should generally be larger than the font size of paragraph tags. This makes it easier for the user to visually understand the layout and level of importance of everything on the page. You use the `font-size` property to adjust the size of the text in an element.
# --instructions--
To make the heading significantly larger than the paragraph, change the `font-size` of the `h4` element to 27 pixels.
# --hints--
Your code should add a `font-size` property to the `h4` element set to 27 pixels.
```js
assert($('h4').css('font-size') == '27px');
```
# --seed--
## --seed-contents--
```html
<style>
h4 {
text-align: center;
background-color: rgba(45, 45, 45, 0.1);
padding: 10px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Alphabet</h4>
<hr>
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
# --solutions--
```html
<style>
h4 {
text-align: center;
background-color: rgba(45, 45, 45, 0.1);
padding: 10px;
font-size: 27px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Alphabet</h4>
<hr>
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/adjust-the-tone-of-a-color.md
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@@ -1,121 +0,0 @@
---
id: 587d78a4367417b2b2512ad5
title: Adjust the Tone of a Color
challengeType: 0
videoUrl: 'https://scrimba.com/c/cEDJvT7'
forumTopicId: 301038
dashedName: adjust-the-tone-of-a-color
---
# --description--
The `hsl()` option in CSS also makes it easy to adjust the tone of a color. Mixing white with a pure hue creates a tint of that color, and adding black will make a shade. Alternatively, a tone is produced by adding gray or by both tinting and shading. Recall that the 's' and 'l' of `hsl()` stand for saturation and lightness, respectively. The saturation percent changes the amount of gray and the lightness percent determines how much white or black is in the color. This is useful when you have a base hue you like, but need different variations of it.
# --instructions--
All elements have a default `background-color` of `transparent`. Our `nav` element currently appears to have a `cyan` background, because the element behind it has a `background-color` set to `cyan`. Add a `background-color` to the `nav` element so it uses the same `cyan` hue, but has `80%` saturation and `25%` lightness values to change its tone and shade.
# --hints--
The `nav` element should have a `background-color` of the adjusted cyan tone using the `hsl()` property.
```js
// Computed style of hsl(180, 80%, 25%) results in rgb(13,115,115)
assert.equal(
new __helpers.CSSHelp(document).getStyle('nav').getPropVal('background-color', true),
'rgb(13,115,115)'
)
```
# --seed--
## --seed-contents--
```html
<style>
header {
background-color: hsl(180, 90%, 35%);
color: #FFFFFF;
}
nav {
}
h1 {
text-indent: 10px;
padding-top: 10px;
}
nav ul {
margin: 0px;
padding: 5px 0px 5px 30px;
}
nav li {
display: inline;
margin-right: 20px;
}
a {
text-decoration: none;
color: inherit;
}
</style>
<header>
<h1>Cooking with FCC!</h1>
<nav>
<ul>
<li><a href="#">Home</a></li>
<li><a href="#">Classes</a></li>
<li><a href="#">Contact</a></li>
</ul>
</nav>
</header>
```
# --solutions--
```html
<style>
header {
background-color: hsl(180, 90%, 35%);
color: #FFFFFF;
}
nav {
background-color: hsl(180, 80%, 25%);
}
h1 {
text-indent: 10px;
padding-top: 10px;
}
nav ul {
margin: 0px;
padding: 5px 0px 5px 30px;
}
nav li {
display: inline;
margin-right: 20px;
}
a {
text-decoration: none;
color: inherit;
}
</style>
<header>
<h1>Cooking with FCC!</h1>
<nav>
<ul>
<li><a href="#">Home</a></li>
<li><a href="#">Classes</a></li>
<li><a href="#">Contact</a></li>
</ul>
</nav>
</header>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/adjust-the-width-of-an-element-using-the-width-property.md
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---
id: 587d7791367417b2b2512ab4
title: Adjust the Width of an Element Using the width Property
challengeType: 0
videoUrl: 'https://scrimba.com/c/cvVLPtN'
forumTopicId: 301039
dashedName: adjust-the-width-of-an-element-using-the-width-property
---
# --description--
You can specify the width of an element using the `width` property in CSS. Values can be given in relative length units (such as `em`), absolute length units (such as `px`), or as a percentage of its containing parent element. Here's an example that changes the width of an image to 220px:
```css
img {
width: 220px;
}
```
# --instructions--
Add a `width` property to the entire card and set it to an absolute value of 245px. Use the `fullCard` class to select the element.
# --hints--
Your code should change the `width` property of the card to 245 pixels by using the `fullCard` class selector.
```js
const fullCard = code.match(/\.fullCard\s*{[\s\S]+?[^}]}/g);
assert(
fullCard &&
/width\s*:\s*245px\s*(;|})/gi.test(fullCard[0]) &&
$('.fullCard').css('maxWidth') === 'none'
);
```
# --seed--
## --seed-contents--
```html
<style>
h4 {
text-align: center;
}
p {
text-align: justify;
}
.links {
margin-right: 20px;
text-align: left;
}
.fullCard {
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Google</h4>
<p>Google was founded by Larry Page and Sergey Brin while they were Ph.D. students at Stanford University.</p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
# --solutions--
```html
<style>
h4 {
text-align: center;
}
p {
text-align: justify;
}
.links {
margin-right: 20px;
text-align: left;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Google</h4>
<p>Google was founded by Larry Page and Sergey Brin while they were Ph.D. students at Stanford University.</p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/animate-elements-at-variable-rates.md
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@@ -1,141 +0,0 @@
---
id: 587d78a8367417b2b2512ae5
title: Animate Elements at Variable Rates
challengeType: 0
videoUrl: 'https://scrimba.com/c/cZ89WA4'
forumTopicId: 301040
dashedName: animate-elements-at-variable-rates
---
# --description--
There are a variety of ways to alter the animation rates of similarly animated elements. So far, this has been achieved by applying an `animation-iteration-count` property and setting `@keyframes` rules.
To illustrate, the animation on the right consists of two stars that each decrease in size and opacity at the 20% mark in the `@keyframes` rule, which creates the twinkle animation. You can change the `@keyframes` rule for one of the elements so the stars twinkle at different rates.
# --instructions--
Alter the animation rate for the element with the class name of `star-1` by changing its `@keyframes` rule to 50%.
# --hints--
The `@keyframes` rule for the `star-1` class should be 50%.
```js
assert(code.match(/twinkle-1\s*?{\s*?50%/g));
```
# --seed--
## --seed-contents--
```html
<style>
.stars {
background-color: white;
height: 30px;
width: 30px;
border-radius: 50%;
animation-iteration-count: infinite;
}
.star-1 {
margin-top: 15%;
margin-left: 60%;
animation-name: twinkle-1;
animation-duration: 1s;
}
.star-2 {
margin-top: 25%;
margin-left: 25%;
animation-name: twinkle-2;
animation-duration: 1s;
}
@keyframes twinkle-1 {
20% {
transform: scale(0.5);
opacity: 0.5;
}
}
@keyframes twinkle-2 {
20% {
transform: scale(0.5);
opacity: 0.5;
}
}
#back {
position: fixed;
padding: 0;
margin: 0;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: linear-gradient(black, #000099, #66c2ff, #ffcccc, #ffeee6);
}
</style>
<div id="back"></div>
<div class="star-1 stars"></div>
<div class="star-2 stars"></div>
```
# --solutions--
```html
<style>
.stars {
background-color: white;
height: 30px;
width: 30px;
border-radius: 50%;
animation-iteration-count: infinite;
}
.star-1 {
margin-top: 15%;
margin-left: 60%;
animation-name: twinkle-1;
animation-duration: 1s;
}
.star-2 {
margin-top: 25%;
margin-left: 25%;
animation-name: twinkle-2;
animation-duration: 1s;
}
@keyframes twinkle-1 {
50% {
transform: scale(0.5);
opacity: 0.5;
}
}
@keyframes twinkle-2 {
20% {
transform: scale(0.5);
opacity: 0.5;
}
}
#back {
position: fixed;
padding: 0;
margin: 0;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: linear-gradient(black, #000099, #66c2ff, #ffcccc, #ffeee6);
}
</style>
<div id="back"></div>
<div class="star-1 stars"></div>
<div class="star-2 stars"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/animate-elements-continually-using-an-infinite-animation-count.md
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---
id: 587d78a8367417b2b2512ae3
title: Animate Elements Continually Using an Infinite Animation Count
challengeType: 0
videoUrl: 'https://scrimba.com/c/cVJDVfq'
forumTopicId: 301041
dashedName: animate-elements-continually-using-an-infinite-animation-count
---
# --description--
The previous challenges covered how to use some of the animation properties and the `@keyframes` rule. Another animation property is the `animation-iteration-count`, which allows you to control how many times you would like to loop through the animation. Here's an example:
```css
animation-iteration-count: 3;
```
In this case the animation will stop after running 3 times, but it's possible to make the animation run continuously by setting that value to `infinite`.
# --instructions--
To keep the ball bouncing on the right on a continuous loop, change the `animation-iteration-count` property to `infinite`.
# --hints--
The `animation-iteration-count` property should have a value of `infinite`.
```js
assert($('#ball').css('animation-iteration-count') == 'infinite');
```
# --seed--
## --seed-contents--
```html
<style>
#ball {
width: 100px;
height: 100px;
margin: 50px auto;
position: relative;
border-radius: 50%;
background: linear-gradient(
35deg,
#ccffff,
#ffcccc
);
animation-name: bounce;
animation-duration: 1s;
animation-iteration-count: 3;
}
@keyframes bounce{
0% {
top: 0px;
}
50% {
top: 249px;
width: 130px;
height: 70px;
}
100% {
top: 0px;
}
}
</style>
<div id="ball"></div>
```
# --solutions--
```html
<style>
#ball {
width: 100px;
height: 100px;
margin: 50px auto;
position: relative;
border-radius: 50%;
background: linear-gradient(
35deg,
#ccffff,
#ffcccc
);
animation-name: bounce;
animation-duration: 1s;
animation-iteration-count: infinite;
}
@keyframes bounce{
0% {
top: 0px;
}
50% {
top: 249px;
width: 130px;
height: 70px;
}
100% {
top: 0px;
}
}
</style>
<div id="ball"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/animate-multiple-elements-at-variable-rates.md
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---
id: 587d78a8367417b2b2512ae6
title: Animate Multiple Elements at Variable Rates
challengeType: 0
videoUrl: 'https://scrimba.com/c/cnpWZc9'
forumTopicId: 301042
dashedName: animate-multiple-elements-at-variable-rates
---
# --description--
In the previous challenge, you changed the animation rates for two similarly animated elements by altering their `@keyframes` rules. You can achieve the same goal by manipulating the `animation-duration` of multiple elements.
In the animation running in the code editor, there are three stars in the sky that twinkle at the same rate on a continuous loop. To make them twinkle at different rates, you can set the `animation-duration` property to different values for each element.
# --instructions--
Set the `animation-duration` of the elements with the classes `star-1`, `star-2`, and `star-3` to 1s, 0.9s, and 1.1s, respectively.
# --hints--
The `animation-duration` property for the star with class `star-1` should remain at 1s.
```js
assert($('.star-1').css('animation-duration') == '1s');
```
The `animation-duration` property for the star with class `star-2` should be 0.9s.
```js
assert($('.star-2').css('animation-duration') == '0.9s');
```
The `animation-duration` property for the star with class `star-3` should be 1.1s.
```js
assert($('.star-3').css('animation-duration') == '1.1s');
```
# --seed--
## --seed-contents--
```html
<style>
.stars {
background-color: white;
height: 30px;
width: 30px;
border-radius: 50%;
animation-iteration-count: infinite;
}
.star-1 {
margin-top: 15%;
margin-left: 60%;
animation-duration: 1s;
animation-name: twinkle;
}
.star-2 {
margin-top: 25%;
margin-left: 25%;
animation-duration: 1s;
animation-name: twinkle;
}
.star-3 {
margin-top: 10%;
margin-left: 50%;
animation-duration: 1s;
animation-name: twinkle;
}
@keyframes twinkle {
20% {
transform: scale(0.5);
opacity: 0.5;
}
}
#back {
position: fixed;
padding: 0;
margin: 0;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: linear-gradient(black, #000099, #66c2ff, #ffcccc, #ffeee6);
}
</style>
<div id="back"></div>
<div class="star-1 stars"></div>
<div class="star-2 stars"></div>
<div class="star-3 stars"></div>
```
# --solutions--
```html
<style>
.stars {
background-color: white;
height: 30px;
width: 30px;
border-radius: 50%;
animation-iteration-count: infinite;
}
.star-1 {
margin-top: 15%;
margin-left: 60%;
animation-duration: 1s;
animation-name: twinkle;
}
.star-2 {
margin-top: 25%;
margin-left: 25%;
animation-duration: 0.9s;
animation-name: twinkle;
}
.star-3 {
margin-top: 10%;
margin-left: 50%;
animation-duration: 1.1s;
animation-name: twinkle;
}
@keyframes twinkle {
20% {
transform: scale(0.5);
opacity: 0.5;
}
}
#back {
position: fixed;
padding: 0;
margin: 0;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: linear-gradient(black, #000099, #66c2ff, #ffcccc, #ffeee6);
}
</style>
<div id="back"></div>
<div class="star-1 stars"></div>
<div class="star-2 stars"></div>
<div class="star-3 stars"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/center-an-element-horizontally-using-the-margin-property.md
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@@ -1,56 +0,0 @@
---
id: 587d78a3367417b2b2512ad0
title: Center an Element Horizontally Using the margin Property
challengeType: 0
videoUrl: 'https://scrimba.com/c/cyLJqU4'
forumTopicId: 301043
dashedName: center-an-element-horizontally-using-the-margin-property
---
# --description--
Another positioning technique is to center a block element horizontally. One way to do this is to set its `margin` to a value of auto.
This method works for images, too. Images are inline elements by default, but can be changed to block elements when you set the `display` property to `block`.
# --instructions--
Center the `div` on the page by adding a `margin` property with a value of `auto`.
# --hints--
The `div` should have a `margin` set to `auto`.
```js
assert(new __helpers.CSSHelp(document).getStyle('div')?.margin === 'auto');
```
# --seed--
## --seed-contents--
```html
<style>
div {
background-color: blue;
height: 100px;
width: 100px;
}
</style>
<div></div>
```
# --solutions--
```html
<style>
div {
background-color: blue;
height: 100px;
width: 100px;
margin: auto;
}
</style>
<div></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/change-an-elements-relative-position.md
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@@ -1,77 +0,0 @@
---
id: 587d781e367417b2b2512ac9
title: Change an Element's Relative Position
challengeType: 0
videoUrl: 'https://scrimba.com/c/czVmMtZ'
forumTopicId: 301044
dashedName: change-an-elements-relative-position
---
# --description--
CSS treats each HTML element as its own box, which is usually referred to as the <dfn>CSS Box Model</dfn>. Block-level items automatically start on a new line (think headings, paragraphs, and divs) while inline items sit within surrounding content (like images or spans). The default layout of elements in this way is called the <dfn>normal flow</dfn> of a document, but CSS offers the position property to override it.
When the position of an element is set to `relative`, it allows you to specify how CSS should move it *relative* to its current position in the normal flow of the page. It pairs with the CSS offset properties of `left` or `right`, and `top` or `bottom`. These say how many pixels, percentages, or ems to move the item *away* from where it is normally positioned. The following example moves the paragraph 10 pixels away from the bottom:
```css
p {
position: relative;
bottom: 10px;
}
```
Changing an element's position to relative does not remove it from the normal flow - other elements around it still behave as if that item were in its default position.
**Note:** Positioning gives you a lot of flexibility and power over the visual layout of a page. It's good to remember that no matter the position of elements, the underlying HTML markup should be organized and make sense when read from top to bottom. This is how users with visual impairments (who rely on assistive devices like screen readers) access your content.
# --instructions--
Change the `position` of the `h2` to `relative`, and use a CSS offset to move it 15 pixels away from the `top` of where it sits in the normal flow. Notice there is no impact on the positions of the surrounding h1 and p elements.
# --hints--
The `h2` element should have a `position` property set to `relative`.
```js
assert($('h2').css('position') == 'relative');
```
Your code should use a CSS offset to relatively position the `h2` 15px away from the `top` of where it normally sits.
```js
assert($('h2').css('top') == '15px');
```
# --seed--
## --seed-contents--
```html
<style>
h2 {
}
</style>
<body>
<h1>On Being Well-Positioned</h1>
<h2>Move me!</h2>
<p>I still think the h2 is where it normally sits.</p>
</body>
```
# --solutions--
```html
<style>
h2 {
position: relative;
top: 15px;
}
</style>
<body>
<h1>On Being Well-Positioned</h1>
<h2>Move me!</h2>
<p>I still think the h2 is where it normally sits.</p>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/change-animation-timing-with-keywords.md
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@@ -1,127 +0,0 @@
---
id: 587d78a8367417b2b2512ae7
title: Change Animation Timing with Keywords
challengeType: 0
videoUrl: 'https://scrimba.com/c/cJKvwCM'
forumTopicId: 301045
dashedName: change-animation-timing-with-keywords
---
# --description--
In CSS animations, the `animation-timing-function` property controls how quickly an animated element changes over the duration of the animation. If the animation is a car moving from point A to point B in a given time (your `animation-duration`), the `animation-timing-function` says how the car accelerates and decelerates over the course of the drive.
There are a number of predefined keywords available for popular options. For example, the default value is `ease`, which starts slow, speeds up in the middle, and then slows down again in the end. Other options include `ease-out`, which is quick in the beginning then slows down, `ease-in`, which is slow in the beginning, then speeds up at the end, or `linear`, which applies a constant animation speed throughout.
# --instructions--
For the elements with id of `ball1` and `ball2`, add an `animation-timing-function` property to each, and set `#ball1` to `linear`, and `#ball2` to `ease-out`. Notice the difference between how the elements move during the animation but end together, since they share the same `animation-duration` of 2 seconds.
# --hints--
The value of the `animation-timing-function` property for the element with the id `ball1` should be `linear`.
```js
const ball1Animation = __helpers.removeWhiteSpace(
$('#ball1').css('animation-timing-function')
);
assert(ball1Animation == 'linear' || ball1Animation == 'cubic-bezier(0,0,1,1)');
```
The value of the `animation-timing-function` property for the element with the id `ball2` should be `ease-out`.
```js
const ball2Animation = __helpers.removeWhiteSpace(
$('#ball2').css('animation-timing-function')
);
assert(
ball2Animation == 'ease-out' || ball2Animation == 'cubic-bezier(0,0,0.58,1)'
);
```
# --seed--
## --seed-contents--
```html
<style>
.balls {
border-radius: 50%;
background: linear-gradient(
35deg,
#ccffff,
#ffcccc
);
position: fixed;
width: 50px;
height: 50px;
margin-top: 50px;
animation-name: bounce;
animation-duration: 2s;
animation-iteration-count: infinite;
}
#ball1 {
left:27%;
}
#ball2 {
left:56%;
}
@keyframes bounce {
0% {
top: 0px;
}
100% {
top: 249px;
}
}
</style>
<div class="balls" id="ball1"></div>
<div class="balls" id="ball2"></div>
```
# --solutions--
```html
<style>
.balls {
border-radius: 50%;
background: linear-gradient(
35deg,
#ccffff,
#ffcccc
);
position: fixed;
width: 50px;
height: 50px;
margin-top: 50px;
animation-name: bounce;
animation-duration: 2s;
animation-iteration-count: infinite;
}
#ball1 {
left:27%;
animation-timing-function: linear;
}
#ball2 {
left:56%;
animation-timing-function: ease-out;
}
@keyframes bounce {
0% {
top: 0px;
}
100% {
top: 249px;
}
}
</style>
<div class="balls" id="ball1"></div>
<div class="balls" id="ball2"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/change-the-position-of-overlapping-elements-with-the-z-index-property.md
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---
id: 587d78a3367417b2b2512acf
title: Change the Position of Overlapping Elements with the z-index Property
challengeType: 0
videoUrl: 'https://scrimba.com/c/cM94aHk'
forumTopicId: 301046
dashedName: change-the-position-of-overlapping-elements-with-the-z-index-property
---
# --description--
When elements are positioned to overlap (i.e. using `position: absolute | relative | fixed | sticky`), the element coming later in the HTML markup will, by default, appear on the top of the other elements. However, the `z-index` property can specify the order of how elements are stacked on top of one another. It must be an integer (i.e. a whole number and not a decimal), and higher values for the `z-index` property of an element move it higher in the stack than those with lower values.
# --instructions--
Add a `z-index` property to the element with the class name of `first` (the red rectangle) and set it to a value of 2 so it covers the other element (blue rectangle).
# --hints--
The element with class `first` should have a `z-index` value of 2.
```js
assert($('.first').css('z-index') == '2');
```
# --seed--
## --seed-contents--
```html
<style>
div {
width: 60%;
height: 200px;
margin-top: 20px;
}
.first {
background-color: red;
position: absolute;
}
.second {
background-color: blue;
position: absolute;
left: 40px;
top: 50px;
z-index: 1;
}
</style>
<div class="first"></div>
<div class="second"></div>
```
# --solutions--
```html
<style>
div {
width: 60%;
height: 200px;
margin-top: 20px;
}
.first {
background-color: red;
position: absolute;
z-index: 2;
}
.second {
background-color: blue;
position: absolute;
left: 40px;
top: 50px;
z-index: 1;
}
</style>
<div class="first"></div>
<div class="second"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/create-a-gradual-css-linear-gradient.md
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---
id: 587d78a5367417b2b2512ad6
title: Create a Gradual CSS Linear Gradient
challengeType: 0
videoUrl: 'https://scrimba.com/c/cg4dpt9'
forumTopicId: 301047
dashedName: create-a-gradual-css-linear-gradient
---
# --description--
Applying a color on HTML elements is not limited to one flat hue. CSS provides the ability to use color transitions, otherwise known as gradients, on elements. This is accessed through the `background` property's `linear-gradient()` function. Here is the general syntax:
```css
background: linear-gradient(gradient_direction, color 1, color 2, color 3, ...);
```
The first argument specifies the direction from which color transition starts - it can be stated as a degree, where `90deg` makes a horizontal gradient (from left to right) and `45deg` makes a diagonal gradient (from bottom left to top right). The following arguments specify the order of colors used in the gradient.
Example:
```css
background: linear-gradient(90deg, red, yellow, rgb(204, 204, 255));
```
# --instructions--
Use a `linear-gradient()` for the `div` element's `background`, and set it from a direction of 35 degrees to change the color from `#CCFFFF` to `#FFCCCC`.
# --hints--
The `div` element should have a `linear-gradient` `background` with the specified direction and colors.
```js
assert(
$('div')
.css('background-image')
.match(
/linear-gradient\(35deg, rgb\(204, 255, 255\), rgb\(255, 204, 204\)\)/gi
)
);
```
# --seed--
## --seed-contents--
```html
<style>
div {
border-radius: 20px;
width: 70%;
height: 400px;
margin: 50px auto;
}
</style>
<div></div>
```
# --solutions--
```html
<style>
div {
border-radius: 20px;
width: 70%;
height: 400px;
margin: 50px auto;
background: linear-gradient(35deg, #CCFFFF, #FFCCCC);
}
</style>
<div></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/create-a-graphic-using-css.md
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---
id: 587d78a6367417b2b2512add
title: Create a Graphic Using CSS
challengeType: 0
videoUrl: 'https://scrimba.com/c/cEDWPs6'
forumTopicId: 301048
dashedName: create-a-graphic-using-css
---
# --description--
By manipulating different selectors and properties, you can make interesting shapes. One of the easier ones to try is a crescent moon shape. For this challenge you need to work with the `box-shadow` property that sets the shadow of an element, along with the `border-radius` property that controls the roundness of the element's corners.
You will create a round, transparent object with a crisp shadow that is slightly offset to the side - the shadow is actually going to be the moon shape you see.
In order to create a round object, the `border-radius` property should be set to a value of 50%.
You may recall from an earlier challenge that the `box-shadow` property takes values for `offset-x`, `offset-y`, `blur-radius`, `spread-radius` and a `color` value in that order. The `blur-radius` and `spread-radius` values are optional.
# --instructions--
Manipulate the square element in the editor to create the moon shape. First, change the `background-color` to `transparent`, then set the `border-radius` property to 50% to make the circular shape. Finally, change the `box-shadow` property to set the `offset-x` to 25px, the `offset-y` to 10px, `blur-radius` to 0, `spread-radius` to 0, and `color` to `blue`.
# --hints--
The value of the `background-color` property should be set to `transparent`.
```js
assert(code.match(/background-color:\s*?transparent;/gi));
```
The value of the `border-radius` property should be set to `50%`.
```js
assert(code.match(/border-radius:\s*?50%;/gi));
```
The value of the `box-shadow` property should be set to 25px for `offset-x`, 10px for `offset-y`, 0 for `blur-radius`, 0 for `spread-radius`, and finally `blue` for the `color`.
```js
assert(
code.match(/box-shadow:\s*?25px\s+?10px\s+?0(px)?\s+?0(px)?\s+?blue\s*?;/gi)
);
```
# --seed--
## --seed-contents--
```html
<style>
.center {
position: absolute;
margin: auto;
top: 0;
right: 0;
bottom: 0;
left: 0;
width: 100px;
height: 100px;
background-color: blue;
border-radius: 0px;
box-shadow: 25px 10px 10px 10px green;
}
</style>
<div class="center"></div>
```
# --solutions--
```html
<style>
.center {
position: absolute;
margin: auto;
top: 0;
right: 0;
bottom: 0;
left: 0;
width: 100px;
height: 100px;
background-color: transparent;
border-radius: 50%;
box-shadow: 25px 10px 0 0 blue;
}
</style>
<div class="center"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/create-a-horizontal-line-using-the-hr-element.md
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---
id: 587d781b367417b2b2512abb
title: Create a Horizontal Line Using the hr Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/c3bR8t7'
forumTopicId: 301049
dashedName: create-a-horizontal-line-using-the-hr-element
---
# --description--
You can use the `hr` tag to add a horizontal line across the width of its containing element. This can be used to define a change in topic or to visually separate groups of content.
# --instructions--
Add an `hr` tag underneath the `h4` which contains the card title.
**Note:** In HTML, `hr` is a self-closing tag, and therefore doesn't need a separate closing tag.
# --hints--
Your code should add an `hr` tag to the markup.
```js
assert($('hr').length == 1);
```
The `hr` tag should come between the title and the paragraph.
```js
assert(code.match(/<\/h4>\s*?<hr(>|\s*?\/>)\s*?<p>/gi));
```
# --seed--
## --seed-contents--
```html
<style>
h4 {
text-align: center;
height: 25px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4><s>Google</s>Alphabet</h4>
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
# --solutions--
```html
<style>
h4 {
text-align: center;
height: 25px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4><s>Google</s>Alphabet</h4>
<hr>
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/create-a-more-complex-shape-using-css-and-html.md
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---
id: 587d78a6367417b2b2512ade
title: Create a More Complex Shape Using CSS and HTML
challengeType: 0
videoUrl: 'https://scrimba.com/c/cPpz4fr'
forumTopicId: 301050
dashedName: create-a-more-complex-shape-using-css-and-html
---
# --description--
One of the most popular shapes in the world is the heart shape, and in this challenge you'll create one using pure CSS. But first, you need to understand the `::before` and `::after` pseudo-elements. `::before` creates a pseudo-element that is the first child of the selected element; `::after` creates a pseudo-element that is the last child of the selected element. In the following example, a `::before` pseudo-element is used to add a rectangle to an element with the class `heart`:
```css
.heart::before {
content: "";
background-color: yellow;
border-radius: 25%;
position: absolute;
height: 50px;
width: 70px;
top: -50px;
left: 5px;
}
```
For the `::before` and `::after` pseudo-elements to function properly, they must have a defined `content` property. This property is usually used to add things like a photo or text to the selected element. When the `::before` and `::after` pseudo-elements are used to make shapes, the `content` property is still required, but it's set to an empty string. In the above example, the element with the class of `heart` has a `::before` pseudo-element that produces a yellow rectangle with height and width of `50px` and `70px`, respectively. This rectangle has round corners due to its 25% `border-radius` and is positioned absolutely at `5px` from the left and `50px` above the top of the element.
# --instructions--
Transform the element on the screen to a heart. In the `.heart::after` selector, change the `background-color` to `pink` and the `border-radius` to 50%.
Next, target the element with the class `heart` (just `heart`) and fill in the `transform` property. Use the `rotate()` function with -45 degrees.
Finally, in the `.heart::before` selector, set its `content` property to an empty string.
# --hints--
The `background-color` property of the `.heart::after` selector should be `pink`.
```js
const heartAfter = code.match(/\.heart::after\s*{[\s\S]+?[^\}]}/g)[0];
assert(
/({|;)\s*background-color\s*:\s*pink\s*(;|})/g.test(heartAfter)
);
```
The `border-radius` of the `.heart::after` selector should be 50%.
```js
assert(code.match(/border-radius\s*?:\s*?50%/gi).length == 2);
```
The `transform` property for the `heart` class should use a `rotate()` function set to -45 degrees.
```js
assert(code.match(/transform\s*?:\s*?rotate\(\s*?-45deg\s*?\)/gi));
```
The `content` of the `.heart::before` selector should be an empty string.
```js
assert(code.match(/\.heart::before\s*?{\s*?content\s*?:\s*?("|')\1\s*?;/gi));
```
# --seed--
## --seed-contents--
```html
<style>
.heart {
position: absolute;
margin: auto;
top: 0;
right: 0;
bottom: 0;
left: 0;
background-color: pink;
height: 50px;
width: 50px;
transform: ;
}
.heart::after {
background-color: blue;
content: "";
border-radius: 25%;
position: absolute;
width: 50px;
height: 50px;
top: 0px;
left: 25px;
}
.heart::before {
content: ;
background-color: pink;
border-radius: 50%;
position: absolute;
width: 50px;
height: 50px;
top: -25px;
left: 0px;
}
</style>
<div class="heart"></div>
```
# --solutions--
```html
<style>
.heart {
position: absolute;
margin: auto;
top: 0;
right: 0;
bottom: 0;
left: 0;
background-color: pink;
height: 50px;
width: 50px;
transform: rotate(-45deg);
}
.heart::after {
background-color: pink;
content: "";
border-radius: 50%;
position: absolute;
width: 50px;
height: 50px;
top: 0px;
left: 25px;
}
.heart::before {
content: "";
background-color: pink;
border-radius: 50%;
position: absolute;
width: 50px;
height: 50px;
top: -25px;
left: 0px;
}
</style>
<div class="heart"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/create-movement-using-css-animation.md
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---
id: 587d78a7367417b2b2512ae1
title: Create Movement Using CSS Animation
challengeType: 0
videoUrl: 'https://scrimba.com/c/c7amZfW'
forumTopicId: 301051
dashedName: create-movement-using-css-animation
---
# --description--
When elements have a specified `position`, such as `fixed` or `relative`, the CSS offset properties `right`, `left`, `top`, and `bottom` can be used in animation rules to create movement.
As shown in the example below, you can push the item downwards then upwards by setting the `top` property of the `50%` keyframe to 50px, but having it set to 0px for the first (`0%`) and the last (`100%`) keyframe.
```css
@keyframes rainbow {
0% {
background-color: blue;
top: 0px;
}
50% {
background-color: green;
top: 50px;
}
100% {
background-color: yellow;
top: 0px;
}
}
```
# --instructions--
Add a horizontal motion to the `div` animation. Using the `left` offset property, add to the `@keyframes` rule so rainbow starts at 0 pixels at `0%`, moves to 25 pixels at `50%`, and ends at -25 pixels at `100%`. Don't replace the `top` property in the editor - the animation should have both vertical and horizontal motion.
# --hints--
The `@keyframes` rule for `0%` should use the `left` offset of 0px.
```js
assert(code.match(/[^50]0%\s*?{[\s\S]*?left:\s*?0px(;[\s\S]*?|\s*?)}/gi));
```
The `@keyframes` rule for `50%` should use the `left` offset of 25px.
```js
assert(code.match(/50%\s*?{[\s\S]*?left:\s*?25px(;[\s\S]*?|\s*?)}/gi));
```
The `@keyframes` rule for `100%` should use the `left` offset of -25px.
```js
assert(code.match(/100%\s*?{[\s\S]*?left:\s*?-25px(;[\s\S]*?|\s*?)}/gi));
```
# --seed--
## --seed-contents--
```html
<style>
div {
height: 40px;
width: 70%;
background: black;
margin: 50px auto;
border-radius: 5px;
position: relative;
}
#rect {
animation-name: rainbow;
animation-duration: 4s;
}
@keyframes rainbow {
0% {
background-color: blue;
top: 0px;
}
50% {
background-color: green;
top: 50px;
}
100% {
background-color: yellow;
top: 0px;
}
}
</style>
<div id="rect"></div>
```
# --solutions--
```html
<style>
div {
height: 40px;
width: 70%;
background: black;
margin: 50px auto;
border-radius: 5px;
position: relative;
}
#rect {
animation-name: rainbow;
animation-duration: 4s;
}
@keyframes rainbow {
0% {
background-color: blue;
top: 0px;
left: 0px;
}
50% {
background-color: green;
top: 50px;
left: 25px;
}
100% {
background-color: yellow;
top: 0px;
left: -25px;
}
}
</style>
<div id="rect"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/create-texture-by-adding-a-subtle-pattern-as-a-background-image.md
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---
id: 587d78a5367417b2b2512ad8
title: Create Texture by Adding a Subtle Pattern as a Background Image
challengeType: 0
videoUrl: 'https://scrimba.com/c/cQdwJC8'
forumTopicId: 301052
dashedName: create-texture-by-adding-a-subtle-pattern-as-a-background-image
---
# --description--
One way to add texture and interest to a background and have it stand out more is to add a subtle pattern. The key is balance, as you don't want the background to stand out too much, and take away from the foreground. The `background` property supports the `url()` function in order to link to an image of the chosen texture or pattern. The link address is wrapped in quotes inside the parentheses.
# --instructions--
Using the url of `https://cdn-media-1.freecodecamp.org/imgr/MJAkxbh.png`, set the `background` of the whole page with the `body` selector.
# --hints--
Your `body` element should have a `background` property set to a `url()` with the given link.
```js
assert(
code.match(
/background(-image)?:\s*?url\(\s*("|'|)https:\/\/cdn-media-1\.freecodecamp\.org\/imgr\/MJAkxbh\.png\2\s*\)/gi
)
);
```
# --seed--
## --seed-contents--
```html
<style>
body {
}
</style>
```
# --solutions--
```html
<style>
body {
background: url("https://cdn-media-1.freecodecamp.org/imgr/MJAkxbh.png");
}
</style>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/create-visual-balance-using-the-text-align-property.md
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---
id: 587d7791367417b2b2512ab3
title: Create Visual Balance Using the text-align Property
challengeType: 0
videoUrl: 'https://scrimba.com/c/c3b4EAp'
forumTopicId: 301053
dashedName: create-visual-balance-using-the-text-align-property
---
# --description--
This section of the curriculum focuses on Applied Visual Design. The first group of challenges build on the given card layout to show a number of core principles.
Text is often a large part of web content. CSS has several options for how to align it with the `text-align` property.
`text-align: justify;` spaces the text so that each line has equal width.
`text-align: center;` centers the text
`text-align: right;` right-aligns the text
And `text-align: left;` (the default) left-aligns the text.
# --instructions--
Align the `h4` tag's text, which says "Google", to the center. Then justify the paragraph tag which contains information about how Google was founded.
# --hints--
Your code should use the text-align property on the `h4` tag to set it to `center`.
```js
assert($('h4').css('text-align') == 'center');
```
Your code should use the text-align property on the `p` tag to set it to `justify`.
```js
assert($('p').css('text-align') == 'justify');
```
# --seed--
## --seed-contents--
```html
<style>
h4 {
}
p {
}
.links {
margin-right: 20px;
}
.fullCard {
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Google</h4>
<p>Google was founded by Larry Page and Sergey Brin while they were Ph.D. students at Stanford University.</p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
# --solutions--
```html
<style>
h4 {
text-align: center;
}
p {
text-align: justify;
}
.links {
margin-right: 20px;
}
.fullCard {
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Google</h4>
<p>Google was founded by Larry Page and Sergey Brin while they were Ph.D. students at Stanford University.</p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/create-visual-direction-by-fading-an-element-from-left-to-right.md
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---
id: 587d78a7367417b2b2512ae2
title: Create Visual Direction by Fading an Element from Left to Right
challengeType: 0
videoUrl: 'https://scrimba.com/c/cGJqqAE'
forumTopicId: 301054
dashedName: create-visual-direction-by-fading-an-element-from-left-to-right
---
# --description--
For this challenge, you'll change the `opacity` of an animated element so it gradually fades as it reaches the right side of the screen.
In the displayed animation, the round element with the gradient background moves to the right by the 50% mark of the animation per the `@keyframes` rule.
# --instructions--
Target the element with the id of `ball` and add the `opacity` property set to 0.1 at `50%`, so the element fades as it moves to the right.
# --hints--
The `keyframes` rule for fade should set the `opacity` property to 0.1 at 50%.
```js
assert(
code.match(
/@keyframes fade\s*?{\s*?50%\s*?{\s*?(?:left:\s*?60%;\s*?opacity:\s*?0?\.1;|opacity:\s*?0?\.1;\s*?left:\s*?60%;)/gi
)
);
```
# --seed--
## --seed-contents--
```html
<style>
#ball {
width: 70px;
height: 70px;
margin: 50px auto;
position: fixed;
left: 20%;
border-radius: 50%;
background: linear-gradient(
35deg,
#ccffff,
#ffcccc
);
animation-name: fade;
animation-duration: 3s;
}
@keyframes fade {
50% {
left: 60%;
}
}
</style>
<div id="ball"></div>
```
# --solutions--
```html
<style>
#ball {
width: 70px;
height: 70px;
margin: 50px auto;
position: fixed;
left: 20%;
border-radius: 50%;
background: linear-gradient(
35deg,
#ccffff,
#ffcccc
);
animation-name: fade;
animation-duration: 3s;
}
@keyframes fade {
50% {
left: 60%;
opacity: 0.1;
}
}
</style>
<div id="ball"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/decrease-the-opacity-of-an-element.md
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---
id: 587d781c367417b2b2512abf
title: Decrease the Opacity of an Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/c7aKqu4'
forumTopicId: 301055
dashedName: decrease-the-opacity-of-an-element
---
# --description--
The `opacity` property in CSS is used to adjust the opacity, or conversely, the transparency for an item.
<blockquote>A value of 1 is opaque, which isn't transparent at all.<br>A value of 0.5 is half see-through.<br>A value of 0 is completely transparent.</blockquote>
The value given will apply to the entire element, whether that's an image with some transparency, or the foreground and background colors for a block of text.
# --instructions--
Set the `opacity` of the anchor tags to 0.7 using `links` class to select them.
# --hints--
Your code should set the `opacity` property to 0.7 on the anchor tags by selecting the class of `links`.
```js
assert(
/\.links\s*{([\s\S]*?;)*\s*opacity\s*:\s*0*\.70*\s*(;[\s\S]*?|\s*)}/.test(
$('style').text()
)
);
```
# --seed--
## --seed-contents--
```html
<style>
h4 {
text-align: center;
background-color: rgba(45, 45, 45, 0.1);
padding: 10px;
font-size: 27px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
#thumbnail {
box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard" id="thumbnail">
<div class="cardContent">
<div class="cardText">
<h4>Alphabet</h4>
<hr>
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
# --solutions--
```html
<style>
h4 {
text-align: center;
background-color: rgba(45, 45, 45, 0.1);
padding: 10px;
font-size: 27px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
opacity: 0.7;
}
#thumbnail {
box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard" id="thumbnail">
<div class="cardContent">
<div class="cardText">
<h4>Alphabet</h4>
<hr>
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/learn-about-complementary-colors.md
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@@ -1,90 +0,0 @@
---
id: 587d78a3367417b2b2512ad1
title: Learn about Complementary Colors
challengeType: 0
videoUrl: 'https://scrimba.com/c/c2MD3Tr'
forumTopicId: 301056
dashedName: learn-about-complementary-colors
---
# --description--
Color theory and its impact on design is a deep topic and only the basics are covered in the following challenges. On a website, color can draw attention to content, evoke emotions, or create visual harmony. Using different combinations of colors can really change the look of a website, and a lot of thought can go into picking a color palette that works with your content.
The color wheel is a useful tool to visualize how colors relate to each other - it's a circle where similar hues are neighbors and different hues are farther apart. When two colors are opposite each other on the wheel, they are called complementary colors. They have the characteristic that if they are combined, they "cancel" each other out and create a gray color. However, when placed side-by-side, these colors appear more vibrant and produce a strong visual contrast.
Some examples of complementary colors with their hex codes are:
<blockquote>red (#FF0000) and cyan (#00FFFF)<br>green (#00FF00) and magenta (#FF00FF)<br>blue (#0000FF) and yellow (#FFFF00)</blockquote>
This is different than the outdated RYB color model that many of us were taught in school, which has different primary and complementary colors. Modern color theory uses the additive RGB model (like on a computer screen) and the subtractive CMY(K) model (like in printing).
There are many color picking tools available online that have an option to find the complement of a color.
**Note:** Using color can be a powerful way to add visual interest to a page. However, color alone should not be used as the only way to convey important information because users with visual impairments may not understand that content. This issue will be covered in more detail in the Applied Accessibility challenges.
# --instructions--
Change the `background-color` property of the `blue` and `yellow` classes to their respective colors. Notice how the colors look different next to each other than they do compared against the white background.
# --hints--
The `div` element with class `blue` should have a `background-color` of blue.
```js
assert($('.blue').css('background-color') == 'rgb(0, 0, 255)');
```
The `div` element with class `yellow` should have a `background-color` of yellow.
```js
assert($('.yellow').css('background-color') == 'rgb(255, 255, 0)');
```
# --seed--
## --seed-contents--
```html
<style>
body {
background-color: #FFFFFF;
}
.blue {
background-color: #000000;
}
.yellow {
background-color: #000000;
}
div {
display: inline-block;
height: 100px;
width: 100px;
}
</style>
<div class="blue"></div>
<div class="yellow"></div>
```
# --solutions--
```html
<style>
body {
background-color: #FFFFFF;
}
.blue {
background-color: blue;
}
.yellow {
background-color: yellow;
}
div {
display: inline-block;
height: 100px;
width: 100px;
}
</style>
<div class="blue"></div>
<div class="yellow"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/learn-about-tertiary-colors.md
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---
id: 587d78a4367417b2b2512ad2
title: Learn about Tertiary Colors
challengeType: 0
forumTopicId: 301057
dashedName: learn-about-tertiary-colors
---
# --description--
Computer monitors and device screens create different colors by combining amounts of red, green, and blue light. This is known as the RGB additive color model in modern color theory. Red (R), green (G), and blue (B) are called primary colors. Mixing two primary colors creates the secondary colors cyan (G + B), magenta (R + B) and yellow (R + G). You saw these colors in the Complementary Colors challenge. These secondary colors happen to be the complement to the primary color not used in their creation, and are opposite to that primary color on the color wheel. For example, magenta is made with red and blue, and is the complement to green.
Tertiary colors are the result of combining a primary color with one of its secondary color neighbors. For example, within the RGB color model, red (primary) and yellow (secondary) make orange (tertiary). This adds six more colors to a simple color wheel for a total of twelve.
There are various methods of selecting different colors that result in a harmonious combination in design. One example that can use tertiary colors is called the split-complementary color scheme. This scheme starts with a base color, then pairs it with the two colors that are adjacent to its complement. The three colors provide strong visual contrast in a design, but are more subtle than using two complementary colors.
Here are three colors created using the split-complement scheme:
<table><thead><tr><th>Color</th><th>Hex Code</th></tr></thead><thead></thead><tbody><tr><td>orange</td><td>#FF7F00</td></tr><tr><td>cyan</td><td>#00FFFF</td></tr><tr><td>raspberry</td><td>#FF007F</td></tr></tbody></table>
# --instructions--
Change the `background-color` property of the `orange`, `cyan`, and `raspberry` classes to their respective colors. Make sure to use the hex codes and not the color names.
# --hints--
The `div` element with class `orange` should have a `background-color` of orange.
```js
assert($('.orange').css('background-color') == 'rgb(255, 127, 0)');
```
The `div` element with class `cyan` should have a `background-color` of cyan.
```js
assert($('.cyan').css('background-color') == 'rgb(0, 255, 255)');
```
The `div` element with class `raspberry` should have a `background-color` of raspberry.
```js
assert($('.raspberry').css('background-color') == 'rgb(255, 0, 127)');
```
All `background-color` values for the color classes should be hex codes and not color names.
```js
assert(!/background-color:\s(orange|cyan|raspberry)/.test(code));
```
# --seed--
## --seed-contents--
```html
<style>
body {
background-color: #FFFFFF;
}
.orange {
background-color: #000000;
}
.cyan {
background-color: #000000;
}
.raspberry {
background-color: #000000;
}
div {
height: 100px;
width: 100px;
margin-bottom: 5px;
}
</style>
<div class="orange"></div>
<div class="cyan"></div>
<div class="raspberry"></div>
```
# --solutions--
```html
<style>
body {
background-color: #FFFFFF;
}
.orange {
background-color: #FF7F00;
}
.cyan {
background-color: #00FFFF;
}
.raspberry {
background-color: #FF007F;
}
div {
height: 100px;
width: 100px;
margin-bottom: 5px;
}
</style>
<div class="orange"></div>
<div class="cyan"></div>
<div class="raspberry"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/learn-how-bezier-curves-work.md
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@@ -1,136 +0,0 @@
---
id: 587d78a9367417b2b2512ae8
title: Learn How Bezier Curves Work
challengeType: 0
videoUrl: 'https://scrimba.com/c/c9bDrs8'
forumTopicId: 301058
dashedName: learn-how-bezier-curves-work
---
# --description--
The last challenge introduced the `animation-timing-function` property and a few keywords that change the speed of an animation over its duration. CSS offers an option other than keywords that provides even finer control over how the animation plays out, through the use of Bezier curves.
In CSS animations, Bezier curves are used with the `cubic-bezier` function. The shape of the curve represents how the animation plays out. The curve lives on a 1 by 1 coordinate system. The X-axis of this coordinate system is the duration of the animation (think of it as a time scale), and the Y-axis is the change in the animation.
The `cubic-bezier` function consists of four main points that sit on this 1 by 1 grid: `p0`, `p1`, `p2`, and `p3`. `p0` and `p3` are set for you - they are the beginning and end points which are always located respectively at the origin (0, 0) and (1, 1). You set the x and y values for the other two points, and where you place them in the grid dictates the shape of the curve for the animation to follow. This is done in CSS by declaring the x and y values of the `p1` and `p2` "anchor" points in the form: `(x1, y1, x2, y2)`. Pulling it all together, here's an example of a Bezier curve in CSS code:
```css
animation-timing-function: cubic-bezier(0.25, 0.25, 0.75, 0.75);
```
In the example above, the x and y values are equivalent for each point (x1 = 0.25 = y1 and x2 = 0.75 = y2), which if you remember from geometry class, results in a line that extends from the origin to point (1, 1). This animation is a linear change of an element during the length of an animation, and is the same as using the `linear` keyword. In other words, it changes at a constant speed.
# --instructions--
For the element with the id of `ball1`, change the value of the `animation-timing-function` property from `linear` to its equivalent `cubic-bezier` function value. Use the point values given in the example above.
# --hints--
The value of the `animation-timing-function` property for the element with the id `ball1` should be the linear-equivalent `cubic-bezier` function.
```js
assert(
$('#ball1').css('animation-timing-function') ==
'cubic-bezier(0.25, 0.25, 0.75, 0.75)'
);
```
The value of the `animation-timing-function` property for the element with the id `ball2` should not change.
```js
const ball2Animation = __helpers.removeWhiteSpace(
$('#ball2').css('animation-timing-function')
);
assert(
ball2Animation == 'ease-out' || ball2Animation == 'cubic-bezier(0,0,0.58,1)'
);
```
# --seed--
## --seed-contents--
```html
<style>
.balls{
border-radius: 50%;
background: linear-gradient(
35deg,
#ccffff,
#ffcccc
);
position: fixed;
width: 50px;
height: 50px;
margin-top: 50px;
animation-name: bounce;
animation-duration: 2s;
animation-iteration-count: infinite;
}
#ball1 {
left: 27%;
animation-timing-function: linear;
}
#ball2 {
left: 56%;
animation-timing-function: ease-out;
}
@keyframes bounce {
0% {
top: 0px;
}
100% {
top: 249px;
}
}
</style>
<div class="balls" id="ball1"></div>
<div class="balls" id="ball2"></div>
```
# --solutions--
```html
<style>
.balls{
border-radius: 50%;
background: linear-gradient(
35deg,
#ccffff,
#ffcccc
);
position: fixed;
width: 50px;
height: 50px;
margin-top: 50px;
animation-name: bounce;
animation-duration: 2s;
animation-iteration-count: infinite;
}
#ball1 {
left: 27%;
animation-timing-function: cubic-bezier(0.25, 0.25, 0.75, 0.75);
}
#ball2 {
left: 56%;
animation-timing-function: ease-out;
}
@keyframes bounce {
0% {
top: 0px;
}
100% {
top: 249px;
}
}
</style>
<div class="balls" id="ball1"></div>
<div class="balls" id="ball2"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/learn-how-the-css-keyframes-and-animation-properties-work.md
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---
id: 587d78a7367417b2b2512adf
title: Learn How the CSS @keyframes and animation Properties Work
challengeType: 0
videoUrl: 'https://scrimba.com/c/cakprhv'
forumTopicId: 301059
dashedName: learn-how-the-css-keyframes-and-animation-properties-work
---
# --description--
To animate an element, you need to know about the animation properties and the `@keyframes` rule. The animation properties control how the animation should behave and the `@keyframes` rule controls what happens during that animation. There are eight animation properties in total. This challenge will keep it simple and cover the two most important ones first:
`animation-name` sets the name of the animation, which is later used by `@keyframes` to tell CSS which rules go with which animations.
`animation-duration` sets the length of time for the animation.
`@keyframes` is how to specify exactly what happens within the animation over the duration. This is done by giving CSS properties for specific "frames" during the animation, with percentages ranging from 0% to 100%. If you compare this to a movie, the CSS properties for 0% is how the element displays in the opening scene. The CSS properties for 100% is how the element appears at the end, right before the credits roll. Then CSS applies the magic to transition the element over the given duration to act out the scene. Here's an example to illustrate the usage of `@keyframes` and the animation properties:
```css
#anim {
animation-name: colorful;
animation-duration: 3s;
}
@keyframes colorful {
0% {
background-color: blue;
}
100% {
background-color: yellow;
}
}
```
For the element with the `anim` id, the code snippet above sets the `animation-name` to `colorful` and sets the `animation-duration` to 3 seconds. Then the `@keyframes` rule links to the animation properties with the name `colorful`. It sets the color to blue at the beginning of the animation (0%) which will transition to yellow by the end of the animation (100%). You aren't limited to only beginning-end transitions, you can set properties for the element for any percentage between 0% and 100%.
# --instructions--
Create an animation for the element with the id `rect`, by setting the `animation-name` to `rainbow` and the `animation-duration` to 4 seconds. Next, declare a `@keyframes` rule, and set the `background-color` at the beginning of the animation (`0%`) to blue, the middle of the animation (`50%`) to green, and the end of the animation (`100%`) to yellow.
# --hints--
The element with id of `rect` should have an `animation-name` property with a value of `rainbow`.
```js
assert($('#rect').css('animation-name') == 'rainbow');
```
The element with id of `rect` should have an `animation-duration` property with a value of 4s.
```js
assert($('#rect').css('animation-duration') == '4s');
```
The `@keyframes` rule should use the `animation-name` of `rainbow`.
```js
assert(code.match(/@keyframes\s+?rainbow\s*?{/g));
```
The `@keyframes` rule for `rainbow` should use a `background-color` of `blue` at 0%.
```js
assert(code.match(/0%\s*?{\s*?background-color:\s*?blue;\s*?}/gi));
```
The `@keyframes` rule for `rainbow` should use a `background-color` of `green` at 50%.
```js
assert(code.match(/50%\s*?{\s*?background-color:\s*?green;\s*?}/gi));
```
The `@keyframes` rule for rainbow should use a `background-color` of `yellow` at 100%.
```js
assert(code.match(/100%\s*?{\s*?background-color:\s*?yellow;\s*?}/gi));
```
# --seed--
## --seed-contents--
```html
<style>
div {
height: 40px;
width: 70%;
background: black;
margin: 50px auto;
border-radius: 5px;
}
#rect {
}
</style>
<div id="rect"></div>
```
# --solutions--
```html
<style>
div {
height: 40px;
width: 70%;
background: black;
margin: 50px auto;
border-radius: 5px;
}
#rect {
animation-name: rainbow;
animation-duration: 4s;
}
@keyframes rainbow {
0% {
background-color: blue;
}
50% {
background-color: green;
}
100% {
background-color: yellow;
}
}
</style>
<div id="rect"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/lock-an-element-to-its-parent-with-absolute-positioning.md
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---
id: 587d781e367417b2b2512acb
title: Lock an Element to its Parent with Absolute Positioning
challengeType: 0
videoUrl: 'https://scrimba.com/c/cyLJ7c3'
forumTopicId: 301060
dashedName: lock-an-element-to-its-parent-with-absolute-positioning
---
# --description--
The next option for the CSS `position` property is `absolute`, which locks the element in place relative to its parent container. Unlike the `relative` position, this removes the element from the normal flow of the document, so surrounding items ignore it. The CSS offset properties (top or bottom and left or right) are used to adjust the position.
One nuance with absolute positioning is that it will be locked relative to its closest *positioned* ancestor. If you forget to add a position rule to the parent item, (this is typically done using `position: relative;`), the browser will keep looking up the chain and ultimately default to the `body` tag.
# --instructions--
Lock the `#searchbar` element to the top-right of its `section` parent by declaring its `position` as `absolute`. Give it `top` and `right` offsets of 50 pixels each.
# --hints--
The `#searchbar` element should have a `position` set to `absolute`.
```js
assert($('#searchbar').css('position') == 'absolute');
```
Your code should use the `top` CSS offset of 50 pixels on the `#searchbar` element.
```js
assert($('#searchbar').css('top') == '50px');
```
Your code should use the `right` CSS offset of 50 pixels on the `#searchbar` element.
```js
assert($('#searchbar').css('right') == '50px');
```
# --seed--
## --seed-contents--
```html
<style>
#searchbar {
}
section {
position: relative;
}
</style>
<body>
<h1>Welcome!</h1>
<section>
<form id="searchbar">
<label for="search">Search:</label>
<input type="search" id="search" name="search">
<input type="submit" name="submit" value="Go!">
</form>
</section>
</body>
```
# --solutions--
```html
<style>
#searchbar {
position: absolute;
top: 50px;
right: 50px;
}
section {
position: relative;
}
</style>
<body>
<h1>Welcome!</h1>
<section>
<form id="searchbar">
<label for="search">Search:</label>
<input type="search" id="search" name="search">
<input type="submit" name="submit" value="Go!">
</form>
</section>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/lock-an-element-to-the-browser-window-with-fixed-positioning.md
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@@ -1,120 +0,0 @@
---
id: 587d781e367417b2b2512acc
title: Lock an Element to the Browser Window with Fixed Positioning
challengeType: 0
videoUrl: 'https://scrimba.com/c/c2MDNUR'
forumTopicId: 301061
dashedName: lock-an-element-to-the-browser-window-with-fixed-positioning
---
# --description--
The next layout scheme that CSS offers is the `fixed` position, which is a type of absolute positioning that locks an element relative to the browser window. Similar to absolute positioning, it's used with the CSS offset properties and also removes the element from the normal flow of the document. Other items no longer "realize" where it is positioned, which may require some layout adjustments elsewhere.
One key difference between the `fixed` and `absolute` positions is that an element with a fixed position won't move when the user scrolls.
# --instructions--
The navigation bar in the code is labeled with an id of `navbar`. Change its `position` to `fixed`, and offset it 0 pixels from the `top` and 0 pixels from the `left`. After you have added the code, scroll the preview window to see how the navigation stays in place.
# --hints--
The `#navbar` element should have a `position` set to `fixed`.
```js
assert($('#navbar').css('position') == 'fixed');
```
Your code should use the `top` CSS offset of 0 pixels on the `#navbar` element.
```js
assert($('#navbar').css('top') == '0px');
```
Your code should use the `left` CSS offset of 0 pixels on the `#navbar` element.
```js
assert($('#navbar').css('left') == '0px');
```
# --seed--
## --seed-contents--
```html
<style>
body {
min-height: 150vh;
}
#navbar {
width: 100%;
background-color: #767676;
}
nav ul {
margin: 0px;
padding: 5px 0px 5px 30px;
}
nav li {
display: inline;
margin-right: 20px;
}
a {
text-decoration: none;
}
</style>
<body>
<header>
<h1>Welcome!</h1>
<nav id="navbar">
<ul>
<li><a href="">Home</a></li>
<li><a href="">Contact</a></li>
</ul>
</nav>
</header>
<p>I shift up when the #navbar is fixed to the browser window.</p>
</body>
```
# --solutions--
```html
<style>
body {
min-height: 150vh;
}
#navbar {
position: fixed;
top: 0;
left: 0;
width: 100%;
background-color: #767676;
}
nav ul {
margin: 0px;
padding: 5px 0px 5px 30px;
}
nav li {
display: inline;
margin-right: 20px;
}
a {
text-decoration: none;
}
</style>
<body>
<header>
<h1>Welcome!</h1>
<nav id="navbar">
<ul>
<li><a href="">Home</a></li>
<li><a href="">Contact</a></li>
</ul>
</nav>
</header>
<p>I shift up when the #navbar is fixed to the browser window.</p>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/make-a-css-heartbeat-using-an-infinite-animation-count.md
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---
id: 587d78a8367417b2b2512ae4
title: Make a CSS Heartbeat using an Infinite Animation Count
challengeType: 0
videoUrl: 'https://scrimba.com/c/cDZpDUr'
forumTopicId: 301062
dashedName: make-a-css-heartbeat-using-an-infinite-animation-count
---
# --description--
Here's one more continuous animation example with the `animation-iteration-count` property that uses the heart you designed in a previous challenge.
The one-second long heartbeat animation consists of two animated pieces. The `heart` elements (including the `:before` and `:after` pieces) are animated to change size using the `transform` property, and the background `div` is animated to change its color using the `background` property.
# --instructions--
Keep the heart beating by adding the `animation-iteration-count` property for both the `back` class and the `heart` class and setting the value to `infinite`. The `heart:before` and `heart:after` selectors do not need any animation properties.
# --hints--
The `animation-iteration-count` property for the `heart` class should have a value of `infinite`.
```js
assert($('.heart').css('animation-iteration-count') == 'infinite');
```
The `animation-iteration-count` property for the `back` class should have a value of `infinite`.
```js
assert($('.back').css('animation-iteration-count') == 'infinite');
```
# --seed--
## --seed-contents--
```html
<style>
.back {
position: fixed;
padding: 0;
margin: 0;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: white;
animation-name: backdiv;
animation-duration: 1s;
}
.heart {
position: absolute;
margin: auto;
top: 0;
right: 0;
bottom: 0;
left: 0;
background-color: pink;
height: 50px;
width: 50px;
transform: rotate(-45deg);
animation-name: beat;
animation-duration: 1s;
}
.heart:after {
background-color: pink;
content: "";
border-radius: 50%;
position: absolute;
width: 50px;
height: 50px;
top: 0px;
left: 25px;
}
.heart:before {
background-color: pink;
content: "";
border-radius: 50%;
position: absolute;
width: 50px;
height: 50px;
top: -25px;
left: 0px;
}
@keyframes backdiv {
50% {
background: #ffe6f2;
}
}
@keyframes beat {
0% {
transform: scale(1) rotate(-45deg);
}
50% {
transform: scale(0.6) rotate(-45deg);
}
}
</style>
<div class="back"></div>
<div class="heart"></div>
```
# --solutions--
```html
<style>
.back {
position: fixed;
padding: 0;
margin: 0;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: white;
animation-name: backdiv;
animation-duration: 1s;
animation-iteration-count: infinite;
}
.heart {
position: absolute;
margin: auto;
top: 0;
right: 0;
bottom: 0;
left: 0;
background-color: pink;
height: 50px;
width: 50px;
transform: rotate(-45deg);
animation-name: beat;
animation-duration: 1s;
animation-iteration-count: infinite;
}
.heart:after {
background-color: pink;
content: "";
border-radius: 50%;
position: absolute;
width: 50px;
height: 50px;
top: 0px;
left: 25px;
}
.heart:before {
background-color: pink;
content: "";
border-radius: 50%;
position: absolute;
width: 50px;
height: 50px;
top: -25px;
left: 0px;
}
@keyframes backdiv {
50% {
background: #ffe6f2;
}
}
@keyframes beat {
0% {
transform: scale(1) rotate(-45deg);
}
50% {
transform: scale(0.6) rotate(-45deg);
}
}
</style>
<div class="back"></div>
<div class="heart"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/make-motion-more-natural-using-a-bezier-curve.md
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---
id: 587d78a9367417b2b2512aea
title: Make Motion More Natural Using a Bezier Curve
challengeType: 0
videoUrl: 'https://scrimba.com/c/c7akWUv'
forumTopicId: 301063
dashedName: make-motion-more-natural-using-a-bezier-curve
---
# --description--
This challenge animates an element to replicate the movement of a ball being juggled. Prior challenges covered the `linear` and `ease-out` cubic Bezier curves, however neither depicts the juggling movement accurately. You need to customize a Bezier curve for this.
The `animation-timing-function` automatically loops at every keyframe when the `animation-iteration-count` is set to infinite. Since there is a keyframe rule set in the middle of the animation duration (at `50%`), it results in two identical animation progressions at the upward and downward movement of the ball.
The following cubic Bezier curve simulates a juggling movement:
```css
cubic-bezier(0.3, 0.4, 0.5, 1.6);
```
Notice that the value of y2 is larger than 1. Although the cubic Bezier curve is mapped on a 1 by 1 coordinate system, and it can only accept x values from 0 to 1, the y value can be set to numbers larger than one. This results in a bouncing movement that is ideal for simulating the juggling ball.
# --instructions--
Change value of the `animation-timing-function` of the element with the id of `green` to a `cubic-bezier` function with x1, y1, x2, y2 values set respectively to 0.311, 0.441, 0.444, 1.649.
# --hints--
The value of the `animation-timing-function` property for the element with the id `green` should be a `cubic-bezier` function with x1, y1, x2, y2 values as specified.
```js
assert(
$('#green').css('animation-timing-function') ==
'cubic-bezier(0.311, 0.441, 0.444, 1.649)'
);
```
# --seed--
## --seed-contents--
```html
<style>
.balls {
border-radius: 50%;
position: fixed;
width: 50px;
height: 50px;
top: 60%;
animation-name: jump;
animation-duration: 2s;
animation-iteration-count: infinite;
}
#red {
background: red;
left: 25%;
animation-timing-function: linear;
}
#blue {
background: blue;
left: 50%;
animation-timing-function: ease-out;
}
#green {
background: green;
left: 75%;
animation-timing-function: cubic-bezier(0.69, 0.1, 1, 0.1);
}
@keyframes jump {
50% {
top: 10%;
}
}
</style>
<div class="balls" id="red"></div>
<div class="balls" id="blue"></div>
<div class="balls" id="green"></div>
```
# --solutions--
```html
<style>
.balls {
border-radius: 50%;
position: fixed;
width: 50px;
height: 50px;
top: 60%;
animation-name: jump;
animation-duration: 2s;
animation-iteration-count: infinite;
}
#red {
background: red;
left: 25%;
animation-timing-function: linear;
}
#blue {
background: blue;
left: 50%;
animation-timing-function: ease-out;
}
#green {
background: green;
left: 75%;
animation-timing-function: cubic-bezier(0.311, 0.441, 0.444, 1.649);
}
@keyframes jump {
50% {
top: 10%;
}
}
</style>
<div class="balls" id="red"></div>
<div class="balls" id="blue"></div>
<div class="balls" id="green"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/modify-fill-mode-of-an-animation.md
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---
id: 58a7a6ebf9a6318348e2d5aa
title: Modify Fill Mode of an Animation
challengeType: 0
videoUrl: 'https://scrimba.com/c/cVJDmcE'
forumTopicId: 301064
dashedName: modify-fill-mode-of-an-animation
---
# --description--
That's great, but it doesn't work right yet. Notice how the animation resets after `500ms` has passed, causing the button to revert back to the original color. You want the button to stay highlighted.
This can be done by setting the `animation-fill-mode` property to `forwards`. The `animation-fill-mode` specifies the style applied to an element when the animation has finished. You can set it like so:
```css
animation-fill-mode: forwards;
```
# --instructions--
Set the `animation-fill-mode` property of `button:hover` to `forwards` so the button stays highlighted when a user hovers over it.
# --hints--
`button:hover` should have a `animation-fill-mode` property with a value of `forwards`.
```js
assert(
code.match(
/button\s*?:\s*?hover\s*?{[\s\S]*animation-fill-mode\s*?:\s*?forwards\s*?;[\s\S]*}/gi
) &&
code.match(
/button\s*?:\s*?hover\s*?{[\s\S]*animation-name\s*?:\s*?background-color\s*?;[\s\S]*}/gi
) &&
code.match(
/button\s*?:\s*?hover\s*?{[\s\S]*animation-duration\s*?:\s*?500ms\s*?;[\s\S]*}/gi
)
);
```
# --seed--
## --seed-contents--
```html
<style>
button {
border-radius: 5px;
color: white;
background-color: #0F5897;
padding: 5px 10px 8px 10px;
}
button:hover {
animation-name: background-color;
animation-duration: 500ms;
/* Only change code below this line */
/* Only change code above this line */
}
@keyframes background-color {
100% {
background-color: #4791d0;
}
}
</style>
<button>Register</button>
```
# --solutions--
```html
<style>
button {
border-radius: 5px;
color: white;
background-color: #0F5897;
padding: 5px 10px 8px 10px;
}
button:hover {
animation-name: background-color;
animation-duration: 500ms;
animation-fill-mode: forwards;
}
@keyframes background-color {
100% {
background-color: #4791d0;
}
}
</style>
<button>Register</button>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/move-a-relatively-positioned-element-with-css-offsets.md
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---
id: 587d781e367417b2b2512aca
title: Move a Relatively Positioned Element with CSS Offsets
challengeType: 0
videoUrl: 'https://scrimba.com/c/c9bQEA4'
forumTopicId: 301065
dashedName: move-a-relatively-positioned-element-with-css-offsets
---
# --description--
The CSS offsets of `top` or `bottom`, and `left` or `right` tell the browser how far to offset an item relative to where it would sit in the normal flow of the document. You're offsetting an element away from a given spot, which moves the element away from the referenced side (effectively, the opposite direction). As you saw in the last challenge, using the `top` offset moved the `h2` downwards. Likewise, using a `left` offset moves an item to the right.
# --instructions--
Use CSS offsets to move the `h2` 15 pixels to the right and 10 pixels up.
# --hints--
Your code should use a CSS offset to relatively position the `h2` 10px upwards. In other words, move it 10px away from the `bottom` of where it normally sits.
```js
assert($('h2').css('bottom') == '10px');
```
Your code should use a CSS offset to relatively position the `h2` 15px towards the right. In other words, move it 15px away from the `left` of where it normally sits.
```js
assert($('h2').css('left') == '15px');
```
# --seed--
## --seed-contents--
```html
<head>
<style>
h2 {
position: relative;
}
</style>
</head>
<body>
<h1>On Being Well-Positioned</h1>
<h2>Move me!</h2>
<p>I still think the h2 is where it normally sits.</p>
</body>
```
# --solutions--
```html
<head>
<style>
h2 {
position: relative;
left: 15px;
bottom: 10px;
}
</style>
</head>
<body>
<h1>On Being Well-Positioned</h1>
<h2>Move me!</h2>
<p>I still think the h2 is where it normally sits.</p>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/push-elements-left-or-right-with-the-float-property.md
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---
id: 587d78a3367417b2b2512ace
title: Push Elements Left or Right with the float Property
challengeType: 0
videoUrl: 'https://scrimba.com/c/c2MDqu2'
forumTopicId: 301066
dashedName: push-elements-left-or-right-with-the-float-property
---
# --description--
The next positioning tool does not actually use `position`, but sets the `float` property of an element. Floating elements are removed from the normal flow of a document and pushed to either the `left` or `right` of their containing parent element. It's commonly used with the `width` property to specify how much horizontal space the floated element requires.
# --instructions--
The given markup would work well as a two-column layout, with the `section` and `aside` elements next to each other. Give the `#left` item a `float` of `left` and the `#right` item a `float` of `right`.
# --hints--
The element with id `left` should have a `float` value of `left`.
```js
assert($('#left').css('float') == 'left');
```
The element with id `right` should have a `float` value of `right`.
```js
assert($('#right').css('float') == 'right');
```
# --seed--
## --seed-contents--
```html
<head>
<style>
#left {
width: 50%;
}
#right {
width: 40%;
}
aside, section {
padding: 2px;
background-color: #ccc;
}
</style>
</head>
<body>
<header>
<h1>Welcome!</h1>
</header>
<section id="left">
<h2>Content</h2>
<p>Good stuff</p>
</section>
<aside id="right">
<h2>Sidebar</h2>
<p>Links</p>
</aside>
</body>
```
# --solutions--
```html
<head>
<style>
#left {
float: left;
width: 50%;
}
#right {
float: right;
width: 40%;
}
aside, section {
padding: 2px;
background-color: #ccc;
}
</style>
</head>
<body>
<header>
<h1>Welcome!</h1>
</header>
<section id="left">
<h2>Content</h2>
<p>Good stuff</p>
</section>
<aside id="right">
<h2>Sidebar</h2>
<p>Links</p>
</aside>
</body>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/set-the-font-size-for-multiple-heading-elements.md
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---
id: 587d781c367417b2b2512ac2
title: Set the font-size for Multiple Heading Elements
challengeType: 0
videoUrl: 'https://scrimba.com/c/cPpQNT3'
forumTopicId: 301067
dashedName: set-the-font-size-for-multiple-heading-elements
---
# --description--
The `font-size` property is used to specify how large the text is in a given element. This rule can be used for multiple elements to create visual consistency of text on a page. In this challenge, you'll set the values for all `h1` through `h6` tags to balance the heading sizes.
# --instructions--
<p>In the <code>style</code> tags, set the <code>font-size</code> of the:</p>
<ul>
<li><code>h1</code> tag to 68px.</li>
<li><code>h2</code> tag to 52px.</li>
<li><code>h3</code> tag to 40px.</li>
<li><code>h4</code> tag to 32px.</li>
<li><code>h5</code> tag to 21px.</li>
<li><code>h6</code> tag to 14px.</li>
</ul>
# --hints--
Your code should set the `font-size` property for the `h1` tag to 68 pixels.
```js
const fontSizeOfh1 = new __helpers.CSSHelp(document).getStyle('h1')?.getPropertyValue('font-size');
assert(fontSizeOfh1 === '68px');
```
Your code should set the `font-size` property for the `h2` tag to 52 pixels.
```js
const fontSizeOfh2 = new __helpers.CSSHelp(document).getStyle('h2')?.getPropertyValue('font-size');
assert(fontSizeOfh2 === '52px');
```
Your code should set the `font-size` property for the `h3` tag to 40 pixels.
```js
const fontSizeOfh3 = new __helpers.CSSHelp(document).getStyle('h3')?.getPropertyValue('font-size');
assert(fontSizeOfh3 === '40px');
```
Your code should set the `font-size` property for the `h4` tag to 32 pixels.
```js
const fontSizeOfh4 = new __helpers.CSSHelp(document).getStyle('h4')?.getPropertyValue('font-size');
assert(fontSizeOfh4 === '32px');
```
Your code should set the `font-size` property for the `h5` tag to 21 pixels.
```js
const fontSizeOfh5 = new __helpers.CSSHelp(document).getStyle('h5')?.getPropertyValue('font-size');
assert(fontSizeOfh5 === '21px');
```
Your code should set the `font-size` property for the `h6` tag to 14 pixels.
```js
const fontSizeOfh6 = new __helpers.CSSHelp(document).getStyle('h6')?.getPropertyValue('font-size');
assert(fontSizeOfh6 === '14px');
```
# --seed--
## --seed-contents--
```html
<style>
</style>
<h1>This is h1 text</h1>
<h2>This is h2 text</h2>
<h3>This is h3 text</h3>
<h4>This is h4 text</h4>
<h5>This is h5 text</h5>
<h6>This is h6 text</h6>
```
# --solutions--
```html
<style>
h1 {
font-size: 68px;
}
h2 {
font-size: 52px;
}
h3 {
font-size: 40px;
}
h4 {
font-size: 32px;
}
h5 {
font-size: 21px;
}
h6 {
font-size: 14px;
}
</style>
<h1>This is h1 text</h1>
<h2>This is h2 text</h2>
<h3>This is h3 text</h3>
<h4>This is h4 text</h4>
<h5>This is h5 text</h5>
<h6>This is h6 text</h6>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/set-the-font-size-of-paragraph-text.md
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---
id: 587d781c367417b2b2512ac4
title: Set the font-size of Paragraph Text
challengeType: 0
videoUrl: 'https://scrimba.com/c/cVJ36Cr'
forumTopicId: 301068
dashedName: set-the-font-size-of-paragraph-text
---
# --description--
The `font-size` property in CSS is not limited to headings, it can be applied to any element containing text.
# --instructions--
Change the value of the `font-size` property for the paragraph to 16px to make it more visible.
# --hints--
Your `p` tag should have a `font-size` of 16 pixels.
```js
assert($('p').css('font-size') == '16px');
```
# --seed--
## --seed-contents--
```html
<style>
p {
font-size: 10px;
}
</style>
<p>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
</p>
```
# --solutions--
```html
<style>
p {
font-size: 16px;
}
</style>
<p>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
</p>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/set-the-font-weight-for-multiple-heading-elements.md
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---
id: 587d781c367417b2b2512ac3
title: Set the font-weight for Multiple Heading Elements
challengeType: 0
videoUrl: 'https://scrimba.com/c/crVWRHq'
forumTopicId: 301069
dashedName: set-the-font-weight-for-multiple-heading-elements
---
# --description--
You set the `font-size` of each heading tag in the last challenge, here you'll adjust the `font-weight`.
The `font-weight` property sets how thick or thin characters are in a section of text.
# --instructions--
<ul><li>Set the <code>font-weight</code> of the <code>h1</code> tag to 800.</li><li>Set the <code>font-weight</code> of the <code>h2</code> tag to 600.</li><li>Set the <code>font-weight</code> of the <code>h3</code> tag to 500.</li><li>Set the <code>font-weight</code> of the <code>h4</code> tag to 400.</li><li>Set the <code>font-weight</code> of the <code>h5</code> tag to 300.</li><li>Set the <code>font-weight</code> of the <code>h6</code> tag to 200.</li></ul>
# --hints--
Your code should set the `font-weight` property for the `h1` tag to 800.
```js
assert($('h1').css('font-weight') == '800');
```
Your code should set the `font-weight` property for the `h2` tag to 600.
```js
assert($('h2').css('font-weight') == '600');
```
Your code should set the `font-weight` property for the `h3` tag to 500.
```js
assert($('h3').css('font-weight') == '500');
```
Your code should set the `font-weight` property for the `h4` tag to 400.
```js
assert($('h4').css('font-weight') == '400');
```
Your code should set the `font-weight` property for the `h5` tag to 300.
```js
assert($('h5').css('font-weight') == '300');
```
Your code should set the `font-weight` property for the `h6` tag to 200.
```js
assert($('h6').css('font-weight') == '200');
```
# --seed--
## --seed-contents--
```html
<style>
h1 {
font-size: 68px;
}
h2 {
font-size: 52px;
}
h3 {
font-size: 40px;
}
h4 {
font-size: 32px;
}
h5 {
font-size: 21px;
}
h6 {
font-size: 14px;
}
</style>
<h1>This is h1 text</h1>
<h2>This is h2 text</h2>
<h3>This is h3 text</h3>
<h4>This is h4 text</h4>
<h5>This is h5 text</h5>
<h6>This is h6 text</h6>
```
# --solutions--
```html
<style>
h1 {
font-size: 68px;
font-weight: 800;
}
h2 {
font-size: 52px;
font-weight: 600;
}
h3 {
font-size: 40px;
font-weight: 500;
}
h4 {
font-size: 32px;
font-weight: 400;
}
h5 {
font-size: 21px;
font-weight: 300;
}
h6 {
font-size: 14px;
font-weight: 200;
}
</style>
<h1>This is h1 text</h1>
<h2>This is h2 text</h2>
<h3>This is h3 text</h3>
<h4>This is h4 text</h4>
<h5>This is h5 text</h5>
<h6>This is h6 text</h6>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/set-the-line-height-of-paragraphs.md
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---
id: 587d781d367417b2b2512ac5
title: Set the line-height of Paragraphs
challengeType: 0
videoUrl: 'https://scrimba.com/c/crVWdcv'
forumTopicId: 301070
dashedName: set-the-line-height-of-paragraphs
---
# --description--
CSS offers the `line-height` property to change the height of each line in a block of text. As the name suggests, it changes the amount of vertical space that each line of text gets.
# --instructions--
Add a `line-height` property to the `p` tag and set it to 25px.
# --hints--
Your code should set the `line-height` of the `p` tag to 25 pixels.
```js
assert($('p').css('line-height') == '25px');
```
# --seed--
## --seed-contents--
```html
<style>
p {
font-size: 16px;
}
</style>
<p>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
</p>
```
# --solutions--
```html
<style>
p {
font-size: 16px;
line-height: 25px;
}
</style>
<p>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
</p>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/use-a-bezier-curve-to-move-a-graphic.md
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---
id: 587d78a9367417b2b2512ae9
title: Use a Bezier Curve to Move a Graphic
challengeType: 0
videoUrl: 'https://scrimba.com/c/c6bnRCK'
forumTopicId: 301071
dashedName: use-a-bezier-curve-to-move-a-graphic
---
# --description--
A previous challenge discussed the `ease-out` keyword that describes an animation change that speeds up first and then slows down at the end of the animation. On the right, the difference between the `ease-out` keyword (for the blue element) and `linear` keyword (for the red element) is demonstrated. Similar animation progressions to the `ease-out` keyword can be achieved by using a custom cubic Bezier curve function.
In general, changing the `p1` and `p2` anchor points drives the creation of different Bezier curves, which controls how the animation progresses through time. Here's an example of a Bezier curve using values to mimic the `ease-out` style:
```css
animation-timing-function: cubic-bezier(0, 0, 0.58, 1);
```
Remember that all `cubic-bezier` functions start with `p0` at (0, 0) and end with `p3` at (1, 1). In this example, the curve moves faster through the Y-axis (starts at 0, goes to `p1` y value of 0, then goes to `p2` y value of 1) than it moves through the X-axis (0 to start, then 0 for `p1`, up to 0.58 for `p2`). As a result, the change in the animated element progresses faster than the time of the animation for that segment. Towards the end of the curve, the relationship between the change in x and y values reverses - the y value moves from 1 to 1 (no change), and the x values move from 0.58 to 1, making the animation changes progress slower compared to the animation duration.
# --instructions--
To see the effect of this Bezier curve in action, change the `animation-timing-function` of the element with id of `red` to a `cubic-bezier` function with x1, y1, x2, y2 set respectively to `0, 0, 0.58, 1` as the values. This will make both elements progress through the animation similarly.
# --hints--
The value of the `animation-timing-function` property of the element with the id `red` should be a `cubic-bezier` function with x1, y1, x2, y2 values set respectively to 0, 0, 0.58, 1 .
```js
assert(
$('#red').css('animation-timing-function') == 'cubic-bezier(0, 0, 0.58, 1)'
);
```
The element with the id `red` should no longer have the `animation-timing-function` property of `linear`.
```js
assert($('#red').css('animation-timing-function') !== 'linear');
```
The value of the `animation-timing-function` property for the element with the id `blue` should not change.
```js
const blueBallAnimation = __helpers.removeWhiteSpace(
$('#blue').css('animation-timing-function')
);
assert(
blueBallAnimation == 'ease-out' ||
blueBallAnimation == 'cubic-bezier(0,0,0.58,1)'
);
```
# --seed--
## --seed-contents--
```html
<style>
.balls{
border-radius: 50%;
position: fixed;
width: 50px;
height: 50px;
margin-top: 50px;
animation-name: bounce;
animation-duration: 2s;
animation-iteration-count: infinite;
}
#red {
background: red;
left: 27%;
animation-timing-function: linear;
}
#blue {
background: blue;
left: 56%;
animation-timing-function: ease-out;
}
@keyframes bounce {
0% {
top: 0px;
}
100% {
top: 249px;
}
}
</style>
<div class="balls" id= "red"></div>
<div class="balls" id= "blue"></div>
```
# --solutions--
```html
<style>
.balls{
border-radius: 50%;
position: fixed;
width: 50px;
height: 50px;
margin-top: 50px;
animation-name: bounce;
animation-duration: 2s;
animation-iteration-count: infinite;
}
#red {
background: red;
left: 27%;
animation-timing-function: cubic-bezier(0, 0, 0.58, 1);
}
#blue {
background: blue;
left: 56%;
animation-timing-function: ease-out;
}
@keyframes bounce {
0% {
top: 0px;
}
100% {
top: 249px;
}
}
</style>
<div class="balls" id= "red"></div>
<div class="balls" id= "blue"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/use-a-css-linear-gradient-to-create-a-striped-element.md
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---
id: 587d78a5367417b2b2512ad7
title: Use a CSS Linear Gradient to Create a Striped Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/c6bmQh2'
forumTopicId: 301072
dashedName: use-a-css-linear-gradient-to-create-a-striped-element
---
# --description--
The `repeating-linear-gradient()` function is very similar to `linear-gradient()` with the major difference that it repeats the specified gradient pattern. `repeating-linear-gradient()` accepts a variety of values, but for simplicity, you'll work with an angle value and color stop values in this challenge.
The angle value is the direction of the gradient. Color stops are like width values that mark where a transition takes place, and are given with a percentage or a number of pixels.
In the example demonstrated in the code editor, the gradient starts with the color `yellow` at 0 pixels which blends into the second color `blue` at 40 pixels away from the start. Since the next color stop is also at 40 pixels, the gradient immediately changes to the third color `green`, which itself blends into the fourth color value `red` as that is 80 pixels away from the beginning of the gradient.
For this example, it helps to think about the color stops as pairs where every two colors blend together.
```css
0px [yellow -- blend -- blue] 40px [green -- blend -- red] 80px
```
If every two color stop values are the same color, the blending isn't noticeable because it's between the same color, followed by a hard transition to the next color, so you end up with stripes.
# --instructions--
Make stripes by changing the `repeating-linear-gradient()` to use a gradient angle of `45deg`, then set the first two color stops to `yellow`, and finally the second two color stops to `black`.
# --hints--
The angle of the `repeating-linear-gradient()` should be 45deg.
```js
assert(code.match(/background:\s*?repeating-linear-gradient\(\s*?45deg/gi));
```
The angle of the `repeating-linear-gradient()` should no longer be 90deg
```js
assert(!code.match(/90deg/gi));
```
The color stop at 0 pixels should be `yellow`.
```js
assert(code.match(/yellow\s+?0(px)?/gi));
```
The first color stop at 40 pixels should be `yellow`.
```js
assert(code.match(/yellow\s+?40px/gi));
```
The second color stop at 40 pixels should be `black`.
```js
assert(code.match(/yellow\s+?40px,\s*?black\s+?40px/gi));
```
The last color stop at 80 pixels should be `black`.
```js
assert(code.match(/black\s+?80px/gi));
```
# --seed--
## --seed-contents--
```html
<style>
div{
border-radius: 20px;
width: 70%;
height: 400px;
margin: 50 auto;
background: repeating-linear-gradient(
90deg,
yellow 0px,
blue 40px,
green 40px,
red 80px
);
}
</style>
<div></div>
```
# --solutions--
```html
<style>
div{
border-radius: 20px;
width: 70%;
height: 400px;
margin: 50 auto;
background: repeating-linear-gradient(
45deg,
yellow 0px,
yellow 40px,
black 40px,
black 80px
);
}
</style>
<div></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/use-css-animation-to-change-the-hover-state-of-a-button.md
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---
id: 587d78a7367417b2b2512ae0
title: Use CSS Animation to Change the Hover State of a Button
challengeType: 0
videoUrl: 'https://scrimba.com/c/cg4vZAa'
forumTopicId: 301073
dashedName: use-css-animation-to-change-the-hover-state-of-a-button
---
# --description--
You can use CSS `@keyframes` to change the color of a button in its hover state.
Here's an example of changing the width of an image on hover:
```html
<style>
img {
width: 30px;
}
img:hover {
animation-name: width;
animation-duration: 500ms;
}
@keyframes width {
100% {
width: 40px;
}
}
</style>
<img src="https://cdn.freecodecamp.org/curriculum/applied-visual-design/google-logo.png" alt="Google's Logo" />
```
# --instructions--
Note that `ms` stands for milliseconds, where 1000ms is equal to 1s.
Use CSS `@keyframes` to change the `background-color` of the `button` element so it becomes `#4791d0` when a user hovers over it. The `@keyframes` rule should only have an entry for `100%`.
# --hints--
The @keyframes rule should use the `animation-name` background-color.
```js
assert(code.match(/@keyframes\s+?background-color\s*?{/g));
```
There should be one rule under `@keyframes` that changes the `background-color` to `#4791d0` at 100%.
```js
assert(code.match(/100%\s*?{\s*?background-color:\s*?#4791d0;\s*?}/gi));
```
# --seed--
## --seed-contents--
```html
<style>
button {
border-radius: 5px;
color: white;
background-color: #0F5897;
padding: 5px 10px 8px 10px;
}
button:hover {
animation-name: background-color;
animation-duration: 500ms;
}
</style>
<button>Register</button>
```
# --solutions--
```html
<style>
button {
border-radius: 5px;
color: white;
background-color: #0F5897;
padding: 5px 10px 8px 10px;
}
button:hover {
animation-name: background-color;
animation-duration: 500ms;
}
@keyframes background-color {
100% {
background-color: #4791d0;
}
}
</style>
<button>Register</button>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/use-the-css-transform-property-skewx-to-skew-an-element-along-the-x-axis.md
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---
id: 587d78a6367417b2b2512adb
title: Use the CSS Transform Property skewX to Skew an Element Along the X-Axis
challengeType: 0
videoUrl: 'https://scrimba.com/c/cyLP8Sr'
forumTopicId: 301074
dashedName: use-the-css-transform-property-skewx-to-skew-an-element-along-the-x-axis
---
# --description--
The next function of the `transform` property is `skewX()`, which skews the selected element along its X (horizontal) axis by a given degree.
The following code skews the paragraph element by -32 degrees along the X-axis.
```css
p {
transform: skewX(-32deg);
}
```
# --instructions--
Skew the element with the id of `bottom` by 24 degrees along the X-axis by using the `transform` property.
# --hints--
The element with id `bottom` should be skewed by 24 degrees along its X-axis.
```js
assert(code.match(/#bottom\s*?{\s*?.*?\s*?transform:\s*?skewX\(24deg\);/g));
```
# --seed--
## --seed-contents--
```html
<style>
div {
width: 70%;
height: 100px;
margin: 50px auto;
}
#top {
background-color: red;
}
#bottom {
background-color: blue;
}
</style>
<div id="top"></div>
<div id="bottom"></div>
```
# --solutions--
```html
<style>
div {
width: 70%;
height: 100px;
margin: 50px auto;
}
#top {
background-color: red;
}
#bottom {
background-color: blue;
transform: skewX(24deg);
}
</style>
<div id="top"></div>
<div id="bottom"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/use-the-css-transform-property-skewy-to-skew-an-element-along-the-y-axis.md
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---
id: 587d78a6367417b2b2512adc
title: Use the CSS Transform Property skewY to Skew an Element Along the Y-Axis
challengeType: 0
videoUrl: 'https://scrimba.com/c/c2MZ2uB'
forumTopicId: 301075
dashedName: use-the-css-transform-property-skewy-to-skew-an-element-along-the-y-axis
---
# --description--
Given that the `skewX()` function skews the selected element along the X-axis by a given degree, it is no surprise that the `skewY()` property skews an element along the Y (vertical) axis.
# --instructions--
Skew the element with the id of `top` -10 degrees along the Y-axis by using the `transform` property.
# --hints--
The element with id `top` should be skewed by -10 degrees along its Y-axis.
```js
assert(code.match(/#top\s*?{\s*?.*?\s*?transform:\s*?skewY\(-10deg\);/g));
```
# --seed--
## --seed-contents--
```html
<style>
div {
width: 70%;
height: 100px;
margin: 50px auto;
}
#top {
background-color: red;
}
#bottom {
background-color: blue;
transform: skewX(24deg);
}
</style>
<div id="top"></div>
<div id="bottom"></div>
```
# --solutions--
```html
<style>
div {
width: 70%;
height: 100px;
margin: 50px auto;
}
#top {
background-color: red;
transform: skewY(-10deg);
}
#bottom {
background-color: blue;
transform: skewX(24deg);
}
</style>
<div id="top"></div>
<div id="bottom"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/use-the-css-transform-scale-property-to-change-the-size-of-an-element.md
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---
id: 587d78a5367417b2b2512ad9
title: Use the CSS Transform scale Property to Change the Size of an Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/c2MZVSg'
forumTopicId: 301076
dashedName: use-the-css-transform-scale-property-to-change-the-size-of-an-element
---
# --description--
To change the scale of an element, CSS has the `transform` property, along with its `scale()` function. The following code example doubles the size of all the paragraph elements on the page:
```css
p {
transform: scale(2);
}
```
# --instructions--
Increase the size of the element with the id of `ball2` to 1.5 times its original size.
# --hints--
The `transform` property for `#ball2` should be set to scale it to 1.5 times its size.
```js
assert(
code.match(
/#ball2\s*?{\s*?left:\s*?65%;\s*?transform:\s*?scale\(1\.5\);\s*?}|#ball2\s*?{\s*?transform:\s*?scale\(1\.5\);\s*?left:\s*?65%;\s*?}/gi
)
);
```
# --seed--
## --seed-contents--
```html
<style>
.ball {
width: 40px;
height: 40px;
margin: 50 auto;
position: fixed;
background: linear-gradient(
35deg,
#ccffff,
#ffcccc
);
border-radius: 50%;
}
#ball1 {
left: 20%;
}
#ball2 {
left: 65%;
}
</style>
<div class="ball" id= "ball1"></div>
<div class="ball" id= "ball2"></div>
```
# --solutions--
```html
<style>
.ball {
width: 40px;
height: 40px;
margin: 50 auto;
position: fixed;
background: linear-gradient(
35deg,
#ccffff,
#ffcccc
);
border-radius: 50%;
}
#ball1 {
left: 20%;
}
#ball2 {
left: 65%;
transform: scale(1.5);
}
</style>
<div class="ball" id= "ball1"></div>
<div class="ball" id= "ball2"></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/use-the-css-transform-scale-property-to-scale-an-element-on-hover.md
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@@ -1,79 +0,0 @@
---
id: 587d78a5367417b2b2512ada
title: Use the CSS Transform scale Property to Scale an Element on Hover
challengeType: 0
videoUrl: 'https://scrimba.com/c/cyLPJuM'
forumTopicId: 301077
dashedName: use-the-css-transform-scale-property-to-scale-an-element-on-hover
---
# --description--
The `transform` property has a variety of functions that let you scale, move, rotate, skew, etc., your elements. When used with pseudo-classes such as `:hover` that specify a certain state of an element, the `transform` property can easily add interactivity to your elements.
Here's an example to scale the paragraph elements to 2.1 times their original size when a user hovers over them:
```css
p:hover {
transform: scale(2.1);
}
```
**Note:** Applying a transform to a `div` element will also affect any child elements contained in the div.
# --instructions--
Add a CSS rule for the `hover` state of the `div` and use the `transform` property to scale the `div` element to 1.1 times its original size when a user hovers over it.
# --hints--
The size of the `div` element should scale 1.1 times when the user hovers over it.
```js
assert(code.match(/div:hover\s*?{\s*?transform:\s*?scale\(1\.1\);/gi));
```
# --seed--
## --seed-contents--
```html
<style>
div {
width: 70%;
height: 100px;
margin: 50px auto;
background: linear-gradient(
53deg,
#ccfffc,
#ffcccf
);
}
</style>
<div></div>
```
# --solutions--
```html
<style>
div {
width: 70%;
height: 100px;
margin: 50px auto;
background: linear-gradient(
53deg,
#ccfffc,
#ffcccf
);
}
div:hover {
transform: scale(1.1);
}
</style>
<div></div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/use-the-em-tag-to-italicize-text.md
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@@ -1,118 +0,0 @@
---
id: 587d781a367417b2b2512ab9
title: Use the em Tag to Italicize Text
challengeType: 0
videoUrl: 'https://scrimba.com/c/cVJRBtp'
forumTopicId: 301078
dashedName: use-the-em-tag-to-italicize-text
---
# --description--
To emphasize text, you can use the `em` tag. This displays text as italicized, as the browser applies the CSS of `font-style: italic;` to the element.
# --instructions--
Wrap an `em` tag around the contents of the paragraph tag to give it emphasis.
# --hints--
Your code should add an `em` tag to the markup.
```js
assert($('em').length == 1);
```
The `em` tag should wrap around the contents of the `p` tag but not the `p` tag itself.
```js
assert($('p').children().length == 1 && $('em').children().length == 2);
```
# --seed--
## --seed-contents--
```html
<style>
h4 {
text-align: center;
height: 25px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Google</h4>
<p>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
# --solutions--
```html
<style>
h4 {
text-align: center;
height: 25px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Google</h4>
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/use-the-s-tag-to-strikethrough-text.md
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---
id: 587d781b367417b2b2512aba
title: Use the s Tag to Strikethrough Text
challengeType: 0
videoUrl: ''
forumTopicId: 301079
dashedName: use-the-s-tag-to-strikethrough-text
---
# --description--
To strikethrough text, which is when a horizontal line cuts across the characters, you can use the `s` tag. It shows that a section of text is no longer valid. With the `s` tag, the browser applies the CSS of `text-decoration: line-through;` to the element.
# --instructions--
Wrap the `s` tag around `Google` inside the `h4` tag and then add the word `Alphabet` beside it without the strikethrough formatting.
# --hints--
Your code should add one `s` tag to the markup.
```js
assert($('s').length == 1);
```
A `s` tag should wrap around the `Google` text in the `h4` tag. It should not contain the word `Alphabet`.
```js
assert(
$('h4 > s')
.text()
.match(/Google/gi) &&
!$('h4 > s')
.text()
.match(/Alphabet/gi)
);
```
You should include the word `Alphabet` in the `h4` tag, without strikethrough formatting.
```js
assert(
$('h4')
.html()
.match(/Alphabet/gi)
);
```
# --seed--
## --seed-contents--
```html
<style>
h4 {
text-align: center;
height: 25px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Google</h4>
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
# --solutions--
```html
<style>
h4 {
text-align: center;
height: 25px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4><s>Google</s> Alphabet</h4>
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/use-the-strong-tag-to-make-text-bold.md
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@@ -1,128 +0,0 @@
---
id: 587d781a367417b2b2512ab7
title: Use the strong Tag to Make Text Bold
challengeType: 0
videoUrl: 'https://scrimba.com/c/ceJNBSb'
forumTopicId: 301080
dashedName: use-the-strong-tag-to-make-text-bold
---
# --description--
To make text bold, you can use the `strong` tag. This is often used to draw attention to text and symbolize that it is important. With the `strong` tag, the browser applies the CSS of `font-weight: bold;` to the element.
# --instructions--
Wrap a `strong` tag around the text `Stanford University` inside the `p` tag (do not include the period).
# --hints--
Your code should add one `strong` tag to the markup.
```js
assert($('strong').length == 1);
```
The `strong` tag should be inside the `p` tag.
```js
assert($('p').children('strong').length == 1);
```
The `strong` tag should wrap around the words `Stanford University`.
```js
assert(
$('strong')
.text()
.match(/^Stanford University\.?$/gi)
);
```
# --seed--
## --seed-contents--
```html
<style>
h4 {
text-align: center;
height: 25px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Google</h4>
<p>Google was founded by Larry Page and Sergey Brin while they were Ph.D. students at Stanford University.</p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
# --solutions--
```html
<style>
h4 {
text-align: center;
height: 25px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Google</h4>
<p>Google was founded by Larry Page and Sergey Brin while they were Ph.D. students at <strong>Stanford University</strong>.</p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/use-the-text-transform-property-to-make-text-uppercase.md
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@@ -1,138 +0,0 @@
---
id: 587d781c367417b2b2512ac0
title: Use the text-transform Property to Make Text Uppercase
challengeType: 0
videoUrl: 'https://scrimba.com/c/cvVZQSP'
forumTopicId: 301081
dashedName: use-the-text-transform-property-to-make-text-uppercase
---
# --description--
The `text-transform` property in CSS is used to change the appearance of text. It's a convenient way to make sure text on a webpage appears consistently, without having to change the text content of the actual HTML elements.
The following table shows how the different `text-transform`values change the example text "Transform me".
<table><thead><tr><th>Value</th><th>Result</th></tr></thead><tbody><tr><td><code>lowercase</code></td><td>"transform me"</td></tr><tr><td><code>uppercase</code></td><td>"TRANSFORM ME"</td></tr><tr><td><code>capitalize</code></td><td>"Transform Me"</td></tr><tr><td><code>initial</code></td><td>Use the default value</td></tr><tr><td><code>inherit</code></td><td>Use the <code>text-transform</code> value from the parent element</td></tr><tr><td><code>none</code></td><td><strong>Default:</strong> Use the original text</td></tr></tbody></table>
# --instructions--
Transform the text of the `h4` to be uppercase using the `text-transform` property.
# --hints--
The `h4` text should be `uppercase`.
```js
assert($('h4').css('text-transform') === 'uppercase');
```
The original text of the h4 should not be changed.
```js
assert($('h4').text() !== $('h4').text().toUpperCase());
```
# --seed--
## --seed-contents--
```html
<style>
h4 {
text-align: center;
background-color: rgba(45, 45, 45, 0.1);
padding: 10px;
font-size: 27px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
opacity: 0.7;
}
#thumbnail {
box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard" id="thumbnail">
<div class="cardContent">
<div class="cardText">
<h4>Alphabet</h4>
<hr>
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
# --solutions--
```html
<style>
h4 {
text-align: center;
background-color: rgba(45, 45, 45, 0.1);
padding: 10px;
font-size: 27px;
text-transform: uppercase;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
opacity: 0.7;
}
#thumbnail {
box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard" id="thumbnail">
<div class="cardContent">
<div class="cardText">
<h4>Alphabet</h4>
<hr>
<p><em>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</em></p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
curriculum/challenges/korean/english/01-responsive-web-design/applied-visual-design/use-the-u-tag-to-underline-text.md
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@@ -1,120 +0,0 @@
---
id: 587d781a367417b2b2512ab8
title: Use the u Tag to Underline Text
challengeType: 0
videoUrl: 'https://scrimba.com/c/cN6aQCL'
forumTopicId: 301082
dashedName: use-the-u-tag-to-underline-text
---
# --description--
To underline text, you can use the `u` tag. This is often used to signify that a section of text is important, or something to remember. With the `u` tag, the browser applies the CSS of `text-decoration: underline;` to the element.
# --instructions--
Wrap the `u` tag only around the text `Ph.D. students`.
**Note:** Try to avoid using the `u` tag when it could be confused for a link. Anchor tags also have a default underlined formatting.
# --hints--
Your code should add a `u` tag to the markup.
```js
assert($('u').length === 1);
```
The `u` tag should wrap around the text `Ph.D. students`.
```js
assert($('u').text() === 'Ph.D. students');
```
# --seed--
## --seed-contents--
```html
<style>
h4 {
text-align: center;
height: 25px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Google</h4>
<p>Google was founded by Larry Page and Sergey Brin while they were Ph.D. students at <strong>Stanford University</strong>.</p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
# --solutions--
```html
<style>
h4 {
text-align: center;
height: 25px;
}
p {
text-align: justify;
}
.links {
text-align: left;
color: black;
}
.fullCard {
width: 245px;
border: 1px solid #ccc;
border-radius: 5px;
margin: 10px 5px;
padding: 4px;
}
.cardContent {
padding: 10px;
}
.cardText {
margin-bottom: 30px;
}
</style>
<div class="fullCard">
<div class="cardContent">
<div class="cardText">
<h4>Google</h4>
<p>Google was founded by Larry Page and Sergey Brin while they were <u>Ph.D. students</u> at <strong>Stanford University</strong>.</p>
</div>
<div class="cardLinks">
<a href="https://en.wikipedia.org/wiki/Larry_Page" target="_blank" class="links">Larry Page</a><br><br>
<a href="https://en.wikipedia.org/wiki/Sergey_Brin" target="_blank" class="links">Sergey Brin</a>
</div>
</div>
</div>
```
curriculum/challenges/korean/english/01-responsive-web-design/basic-css/add-a-negative-margin-to-an-element.md
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@@ -1,115 +0,0 @@
---
id: bad87fee1348bd9aedf08823
title: Add a Negative Margin to an Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/cnpyGs3'
forumTopicId: 16166
dashedName: add-a-negative-margin-to-an-element
---
# --description--
An element's `margin` controls the amount of space between an element's `border` and surrounding elements.
If you set an element's `margin` to a negative value, the element will grow larger.
# --instructions--
Try to set the `margin` to a negative value like the one for the red box.
Change the `margin` of the blue box to `-15px`, so it fills the entire horizontal width of the yellow box around it.
# --hints--
Your `blue-box` class should give elements `-15px` of `margin`.
```js
assert($('.blue-box').css('margin-top') === '-15px');
```
# --seed--
## --seed-contents--
```html
<style>
.injected-text {
margin-bottom: -25px;
text-align: center;
}
.box {
border-style: solid;
border-color: black;
border-width: 5px;
text-align: center;
}
.yellow-box {
background-color: yellow;
padding: 10px;
}
.red-box {
background-color: crimson;
color: #fff;
padding: 20px;
margin: -15px;
}
.blue-box {
background-color: blue;
color: #fff;
padding: 20px;
margin: 20px;
}
</style>
<div class="box yellow-box">
<h5 class="box red-box">padding</h5>
<h5 class="box blue-box">padding</h5>
</div>
```
# --solutions--
```html
<style>
.injected-text {
margin-bottom: -25px;
text-align: center;
}
.box {
border-style: solid;
border-color: black;
border-width: 5px;
text-align: center;
}
.yellow-box {
background-color: yellow;
padding: 10px;
}
.red-box {
background-color: crimson;
color: #fff;
padding: 20px;
margin: -15px;
}
.blue-box {
background-color: blue;
color: #fff;
padding: 20px;
margin: 20px;
margin-top: -15px;
}
</style>
<div class="box yellow-box">
<h5 class="box red-box">padding</h5>
<h5 class="box blue-box">padding</h5>
</div>
```
curriculum/challenges/korean/english/01-responsive-web-design/basic-css/add-borders-around-your-elements.md
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@@ -1,190 +0,0 @@
---
id: bad87fee1348bd9bedf08813
title: Add Borders Around Your Elements
challengeType: 0
videoUrl: 'https://scrimba.com/c/c2MvnHZ'
forumTopicId: 16630
dashedName: add-borders-around-your-elements
---
# --description--
CSS borders have properties like `style`, `color` and `width`.
For example, if we wanted to create a red, 5 pixel border around an HTML element, we could use this class:
```html
<style>
.thin-red-border {
border-color: red;
border-width: 5px;
border-style: solid;
}
</style>
```
# --instructions--
Create a class called `thick-green-border`. This class should add a 10px, solid, green border around an HTML element. Apply the class to your cat photo.
Remember that you can apply multiple classes to an element using its `class` attribute, by separating each class name with a space. For example:
```html
<img class="class1 class2">
```
# --hints--
Your `img` element should have the class `smaller-image`.
```js
assert($('img').hasClass('smaller-image'));
```
Your `img` element should have the class `thick-green-border`.
```js
assert($('img').hasClass('thick-green-border'));
```
Your image should have a border width of `10px`.
```js
assert(
$('img').hasClass('thick-green-border') &&
parseInt($('img').css('border-top-width'), 10) >= 8 &&
parseInt($('img').css('border-top-width'), 10) <= 12
);
```
Your image should have a border style of `solid`.
```js
assert($('img').css('border-right-style') === 'solid');
```
The border around your `img` element should be green.
```js
assert($('img').css('border-left-color') === 'rgb(0, 128, 0)');
```
# --seed--
## --seed-contents--
```html
<link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet" type="text/css">
<style>
.red-text {
color: red;
}
h2 {
font-family: Lobster, monospace;
}
p {
font-size: 16px;
font-family: monospace;
}
.smaller-image {
width: 100px;
}
</style>
<h2 class="red-text">CatPhotoApp</h2>
<main>
<p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
<a href="#"><img class="smaller-image" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
<div>
<p>Things cats love:</p>
<ul>
<li>cat nip</li>
<li>laser pointers</li>
<li>lasagna</li>
</ul>
<p>Top 3 things cats hate:</p>
<ol>
<li>flea treatment</li>
<li>thunder</li>
<li>other cats</li>
</ol>
</div>
<form action="https://freecatphotoapp.com/submit-cat-photo">
<label><input type="radio" name="indoor-outdoor" checked> Indoor</label>
<label><input type="radio" name="indoor-outdoor"> Outdoor</label><br>
<label><input type="checkbox" name="personality" checked> Loving</label>
<label><input type="checkbox" name="personality"> Lazy</label>
<label><input type="checkbox" name="personality"> Energetic</label><br>
<input type="text" placeholder="cat photo URL" required>
<button type="submit">Submit</button>
</form>
</main>
```
# --solutions--
```html
<link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet" type="text/css">
<style>
.red-text {
color: red;
}
h2 {
font-family: Lobster, monospace;
}
p {
font-size: 16px;
font-family: monospace;
}
.smaller-image {
width: 100px;
}
.thick-green-border {
border-width: 10px;
border-color: green;
border-style: solid;
}
</style>
<h2 class="red-text">CatPhotoApp</h2>
<main>
<p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
<a href="#"><img class="smaller-image thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
<div>
<p>Things cats love:</p>
<ul>
<li>cat nip</li>
<li>laser pointers</li>
<li>lasagna</li>
</ul>
<p>Top 3 things cats hate:</p>
<ol>
<li>flea treatment</li>
<li>thunder</li>
<li>other cats</li>
</ol>
</div>
<form action="https://freecatphotoapp.com/submit-cat-photo">
<label><input type="radio" name="indoor-outdoor" checked> Indoor</label>
<label><input type="radio" name="indoor-outdoor"> Outdoor</label><br>
<label><input type="checkbox" name="personality" checked> Loving</label>
<label><input type="checkbox" name="personality"> Lazy</label>
<label><input type="checkbox" name="personality"> Energetic</label><br>
<input type="text" placeholder="cat photo URL" required>
<button type="submit">Submit</button>
</form>
</main>
```
curriculum/challenges/korean/english/01-responsive-web-design/basic-css/add-different-margins-to-each-side-of-an-element.md
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@@ -1,136 +0,0 @@
---
id: bad87fee1248bd9aedf08824
title: Add Different Margins to Each Side of an Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/cg4RWh4'
forumTopicId: 16633
dashedName: add-different-margins-to-each-side-of-an-element
---
# --description--
Sometimes you will want to customize an element so that it has a different `margin` on each of its sides.
CSS allows you to control the `margin` of all four individual sides of an element with the `margin-top`, `margin-right`, `margin-bottom`, and `margin-left` properties.
# --instructions--
Give the blue box a `margin` of `40px` on its top and left side, but only `20px` on its bottom and right side.
# --hints--
Your `blue-box` class should give the top of elements `40px` of `margin`.
```js
assert($('.blue-box').css('margin-top') === '40px');
```
Your `blue-box` class should give the right of elements `20px` of `margin`.
```js
assert($('.blue-box').css('margin-right') === '20px');
```
Your `blue-box` class should give the bottom of elements `20px` of `margin`.
```js
assert($('.blue-box').css('margin-bottom') === '20px');
```
Your `blue-box` class should give the left of elements `40px` of `margin`.
```js
assert($('.blue-box').css('margin-left') === '40px');
```
# --seed--
## --seed-contents--
```html
<style>
.injected-text {
margin-bottom: -25px;
text-align: center;
}
.box {
border-style: solid;
border-color: black;
border-width: 5px;
text-align: center;
}
.yellow-box {
background-color: yellow;
padding: 10px;
}
.red-box {
background-color: crimson;
color: #fff;
margin-top: 40px;
margin-right: 20px;
margin-bottom: 20px;
margin-left: 40px;
}
.blue-box {
background-color: blue;
color: #fff;
}
</style>
<h5 class="injected-text">margin</h5>
<div class="box yellow-box">
<h5 class="box red-box">padding</h5>
<h5 class="box blue-box">padding</h5>
</div>
```
# --solutions--
```html
<style>
.injected-text {
margin-bottom: -25px;
text-align: center;
}
.box {
border-style: solid;
border-color: black;
border-width: 5px;
text-align: center;
}
.yellow-box {
background-color: yellow;
padding: 10px;
}
.red-box {
background-color: crimson;
color: #fff;
margin-top: 40px;
margin-right: 20px;
margin-bottom: 20px;
margin-left: 40px;
}
.blue-box {
background-color: blue;
color: #fff;
margin-top: 40px;
margin-right: 20px;
margin-bottom: 20px;
margin-left: 40px;
}
</style>
<h5 class="injected-text">margin</h5>
<div class="box yellow-box">
<h5 class="box red-box">padding</h5>
<h5 class="box blue-box">padding</h5>
</div>
```
curriculum/challenges/korean/english/01-responsive-web-design/basic-css/add-different-padding-to-each-side-of-an-element.md
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@@ -1,136 +0,0 @@
---
id: bad87fee1348bd9aedf08824
title: Add Different Padding to Each Side of an Element
challengeType: 0
videoUrl: 'https://scrimba.com/c/cB7mwUw'
forumTopicId: 16634
dashedName: add-different-padding-to-each-side-of-an-element
---
# --description--
Sometimes you will want to customize an element so that it has different amounts of `padding` on each of its sides.
CSS allows you to control the `padding` of all four individual sides of an element with the `padding-top`, `padding-right`, `padding-bottom`, and `padding-left` properties.
# --instructions--
Give the blue box a `padding` of `40px` on its top and left side, but only `20px` on its bottom and right side.
# --hints--
Your `blue-box` class should give the top of the elements `40px` of `padding`.
```js
assert($('.blue-box').css('padding-top') === '40px');
```
Your `blue-box` class should give the right of the elements `20px` of `padding`.
```js
assert($('.blue-box').css('padding-right') === '20px');
```
Your `blue-box` class should give the bottom of the elements `20px` of `padding`.
```js
assert($('.blue-box').css('padding-bottom') === '20px');
```
Your `blue-box` class should give the left of the elements `40px` of `padding`.
```js
assert($('.blue-box').css('padding-left') === '40px');
```
# --seed--
## --seed-contents--
```html
<style>
.injected-text {
margin-bottom: -25px;
text-align: center;
}
.box {
border-style: solid;
border-color: black;
border-width: 5px;
text-align: center;
}
.yellow-box {
background-color: yellow;
padding: 10px;
}
.red-box {
background-color: crimson;
color: #fff;
padding-top: 40px;
padding-right: 20px;
padding-bottom: 20px;
padding-left: 40px;
}
.blue-box {
background-color: blue;
color: #fff;
}
</style>
<h5 class="injected-text">margin</h5>
<div class="box yellow-box">
<h5 class="box red-box">padding</h5>
<h5 class="box blue-box">padding</h5>
</div>
```
# --solutions--
```html
<style>
.injected-text {
margin-bottom: -25px;
text-align: center;
}
.box {
border-style: solid;
border-color: black;
border-width: 5px;
text-align: center;
}
.yellow-box {
background-color: yellow;
padding: 10px;
}
.red-box {
background-color: crimson;
color: #fff;
padding-top: 40px;
padding-right: 20px;
padding-bottom: 20px;
padding-left: 40px;
}
.blue-box {
background-color: blue;
color: #fff;
padding-top: 40px;
padding-right: 20px;
padding-bottom: 20px;
padding-left: 40px;
}
</style>
<h5 class="injected-text">margin</h5>
<div class="box yellow-box">
<h5 class="box red-box">padding</h5>
<h5 class="box blue-box">padding</h5>
</div>
```

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