79d9012432
* fix(curriculum): tests quotes * fix(curriculum): fill seed-teardown * fix(curriculum): fix tests and remove unneeded seed-teardown
84 lines
2.9 KiB
Markdown
84 lines
2.9 KiB
Markdown
---
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id: 587d7fa5367417b2b2512bbd
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title: Extend One Set of CSS Styles to Another Element
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required:
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- src: 'https://cdnjs.cloudflare.com/ajax/libs/sass.js/0.10.9/sass.sync.min.js'
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raw: true
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challengeType: 0
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---
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## Description
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<section id='description'>
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Sass has a feature called <code>extend</code> that makes it easy to borrow the CSS rules from one element and build upon them in another.
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For example, the below block of CSS rules style a <code>.panel</code> class. It has a <code>background-color</code>, <code>height</code> and <code>border</code>.
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<blockquote>.panel{<br> background-color: red;<br> height: 70px;<br> border: 2px solid green;<br>}</blockquote>
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Now you want another panel called <code>.big-panel</code>. It has the same base properties as <code>.panel</code>, but also needs a <code>width</code> and <code>font-size</code>.
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It's possible to copy and paste the initial CSS rules from <code>.panel</code>, but the code becomes repetitive as you add more types of panels.
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The <code>extend</code> directive is a simple way to reuse the rules written for one element, then add more for another:
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<blockquote>.big-panel{<br> @extend .panel;<br> width: 150px;<br> font-size: 2em;<br>}</blockquote>
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The <code>.big-panel</code> will have the same properties as <code>.panel</code> in addition to the new styles.
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</section>
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## Instructions
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<section id='instructions'>
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Make a class <code>.info-important</code> that extends <code>.info</code> and also has a <code>background-color</code> set to magenta.
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: Your <code>info-important</code> class should have a <code>background-color</code> set to <code>magenta</code>.
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testString: assert(code.match(/\.info-important\s*?{[\s\S]*background-color\s*?:\s*?magenta\s*?;[\s\S]*}/gi), 'Your <code>info-important</code> class should have a <code>background-color</code> set to <code>magenta</code>.');
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- text: Your <code>info-important</code> class should use <code>@extend</code> to inherit the styling from the <code>info</code> class.
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testString: assert(code.match(/\.info-important\s*?{[\s\S]*@extend\s*?.info\s*?;[\s\S]*/gi), 'Your <code>info-important</code> class should use <code>@extend</code> to inherit the styling from the <code>info</code> class.');
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='html-seed'>
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```html
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<style type='text/sass'>
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h3{
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text-align: center;
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}
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.info{
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width: 200px;
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border: 1px solid black;
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margin: 0 auto;
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}
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</style>
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<h3>Posts</h3>
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<div class="info-important">
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<p>This is an important post. It should extend the class ".info" and have its own CSS styles.</p>
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</div>
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<div class="info">
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<p>This is a simple post. It has basic styling and can be extended for other uses.</p>
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</div>
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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