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freeCodeCamp/curriculum/challenges/chinese/01-responsive-web-design/applied-visual-design/use-the-css-transform-scale-property-to-change-the-size-of-an-element.chinese.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
localeTitle: 使用 CSS Transform scale 属性可以更改元素的大小
---
## Description
<section id='description'>
CSS 属性 <code>transform</code> 里面的 <code>scale()</code> 函数,可以用来改变元素的显示比例。下面的例子把页面的段落元素放大了 2 倍:
```css
p {
transform: scale(2);
}
```
</section>
## Instructions
<section id='instructions'>
把 id 为 <code>ball2</code> 的元素放大到原始大小的 1.5 倍。
</section>
## Tests
<section id='tests'>
```yml
tests:
- text: '<code>#ball2</code><code>transform</code> 属性应该为原始大小的 1.5 倍。'
testString: '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), ''<code>#ball2</code><code>transform</code> 属性应该为原始大小的 1.5 倍。'');'
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='html-seed'>
```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>
```
</div>
</section>
## Solution
<section id='solution'>
```html
// solution required
```
</section>