freeCodeCamp/curriculum/challenges/chinese/01-responsive-web-design/applied-visual-design/add-a-box-shadow-to-a-card-...

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---
id: 587d781b367417b2b2512abe
title: Add a box-shadow to a Card-like Element
challengeType: 0
videoUrl: ''
localeTitle: 将盒子阴影添加到类似卡片的元素
---
## Description
<section id="description"> <code>box-shadow</code>属性将一个或多个阴影应用于元素。 <code>box-shadow</code>属性采用<code>offset-x</code>值(从元素水平推动阴影的距离), <code>offset-y</code> (从元素垂直推动阴影的距离), <code>blur-radius</code> <code>spread-radius</code>和颜色价值,按此顺序。 <code>blur-radius</code><code>spread-radius</code>值是可选的。这是一个用于创建具有一些模糊的多个阴影的CSS的示例大多数是透明的黑色 <blockquote> box-shadow0 10px 20px rgba0,0,0,0.190 6px 6px rgba0,0,0,0.23; </blockquote></section>
## Instructions
<section id="instructions">该元素现在具有<code>thumbnail</code> ID。使用此选择器使用上面的示例CSS值在卡上放置一个<code>box-shadow</code></section>
## Tests
<section id='tests'>
```yml
tests:
- text: 您的代码应为<code>thumbnail</code> ID添加<code>box-shadow</code>属性。
testString: 'assert(code.match(/#thumbnail\s*?{\s*?box-shadow/g), "Your code should add a <code>box-shadow</code> property for the <code>thumbnail</code> id.");'
- text: 您应该使用给定的CSS作为<code>box-shadow</code>值。
testString: '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*?0\s+?6px\s+?6px\s+?rgba\(\s*?0\s*?,\s*?0\s*?,\s*?0\s*?,\s*?0?\.23\)/gi), "You should use the given CSS for the <code>box-shadow</code> value.");'
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='html-seed'>
```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>
```
</div>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
</section>