58 lines
1.2 KiB
Markdown
58 lines
1.2 KiB
Markdown
---
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id: 587d78a3367417b2b2512ad0
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title: Center an Element Horizontally Using the margin Property
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challengeType: 0
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videoUrl: ''
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localeTitle: 使用margin属性水平居中元素
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---
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## Description
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<section id="description">另一种定位技术是将块元素水平居中。一种方法是将其<code>margin</code>设置为auto值。此方法也适用于图像。默认情况下，图像是内联元素，但在将<code>display</code>属性设置为block时可以更改为块元素。 </section>
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## Instructions
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<section id="instructions">居中的<code>div</code>通过添加在页面上<code>margin</code>属性与汽车的价值。 </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>div</code>应该有一个设置为auto的<code>margin</code> 。
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testString: 'assert(code.match(/margin:\s*?auto;/g), "The <code>div</code> should have a <code>margin</code> set to auto.");'
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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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div {
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background-color: blue;
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height: 100px;
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width: 100px;
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}
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</style>
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<div></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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