99 lines
2.4 KiB
Markdown
99 lines
2.4 KiB
Markdown
---
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id: bad87fee1248bd9aedf08824
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title: Add Different Margins to Each Side of an Element
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challengeType: 0
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videoUrl: 'https://scrimba.com/c/cg4RWh4'
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forumTopicId: 16633
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localeTitle: 给元素的每一侧添加不同的外边距
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---
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## Description
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<section id='description'>
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有时候，你会想给一个元素每个方向的<code>margin</code>都设置成一个特定的值。
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CSS 允许你使用<code>margin-top</code>，<code>margin-right</code>，<code>margin-bottom</code>和<code>margin-left</code>属性来设置四个不同方向的<code>margin</code>值。
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</section>
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## Instructions
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<section id='instructions'>
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蓝色框的顶部和左侧的<code>margin</code>值设置为<code>40px</code>，底部和右侧设置为<code>20px</code>。
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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: '<code>blue-box</code> class 的右侧<code>margin</code>（上外边距）值应为<code>40px</code>。'
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testString: assert($(".blue-box").css("margin-top") === "40px");
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- text: '<code>blue-box</code> class 的右侧<code>margin</code>（右外边距）值应为<code>20px</code>。'
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testString: assert($(".blue-box").css("margin-right") === "20px");
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- text: '<code>blue-box</code> class 的底部<code>margin</code>（下外边距）值应为<code>20px</code>。'
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testString: assert($(".blue-box").css("margin-bottom") === "20px");
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- text: '<code>blue-box</code> class 的左侧<code>margin</code>（左外边距）值应为<code>40px</code>。'
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testString: assert($(".blue-box").css("margin-left") === "40px");
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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>
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.injected-text {
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margin-bottom: -25px;
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text-align: center;
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}
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.box {
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border-style: solid;
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border-color: black;
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border-width: 5px;
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text-align: center;
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}
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.yellow-box {
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background-color: yellow;
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padding: 10px;
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}
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.red-box {
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background-color: crimson;
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color: #fff;
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margin-top: 40px;
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margin-right: 20px;
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margin-bottom: 20px;
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margin-left: 40px;
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}
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.blue-box {
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background-color: blue;
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color: #fff;
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}
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</style>
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<h5 class="injected-text">margin</h5>
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<div class="box yellow-box">
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<h5 class="box red-box">padding</h5>
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<h5 class="box blue-box">padding</h5>
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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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