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freeCodeCamp/curriculum/challenges/chinese/03-front-end-libraries/bootstrap/call-out-optional-actions-with-btn-info.chinese.md
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---
id: bad87fee1348cd8acef08813
title: Call out Optional Actions with btn-info
challengeType: 0
videoUrl: ''
localeTitle: 使用btn-info调出可选操作
---
## Description
<section id="description"> Bootstrap带有几种预定义的按钮颜色。 <code>btn-info</code>类用于引起对用户可以采取的可选操作的注意。使用文本“Info”在“Like”按钮下创建一个新的块级Bootstrap按钮并向其添加Bootstrap的<code>btn-info</code><code>btn-block</code>类。请注意,这些按钮仍然需要<code>btn</code><code>btn-block</code>类。 </section>
## Instructions
<section id="instructions">
</section>
## Tests
<section id='tests'>
```yml
tests:
- text: 使用文本“Info”创建一个新的<code>button</code>元素。
testString: assert(new RegExp("info","gi").test($("button").text()));
- text: 两个Bootstrap按钮都应该有<code>btn</code>和<code>btn-block</code>类。
testString: assert($("button.btn-block.btn").length > 1);
- text: 你的新按钮应该有类<code>btn-info</code> 。
testString: assert($("button").hasClass("btn-info"));
- text: 确保所有<code>button</code>元素都有一个结束标记。
testString: assert(code.match(/<\/button>/g) && code.match(/<button/g) && code.match(/<\/button>/g).length === code.match(/<button/g).length);
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='html-seed'>
```html
<link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet" type="text/css">
<style>
.red-text {
color: red;
}
h2 {
font-family: Lobster, Monospace;
}
p {
font-size: 16px;
font-family: Monospace;
}
.thick-green-border {
border-color: green;
border-width: 10px;
border-style: solid;
border-radius: 50%;
}
.smaller-image {
width: 100px;
}
</style>
<div class="container-fluid">
<h2 class="red-text text-center">CatPhotoApp</h2>
<p>Click here for <a href="#">cat photos</a>.</p>
<a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
<img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
<button class="btn btn-block btn-primary">Like</button>
<p>Things cats love:</p>
<ul>
<li>cat nip</li>
<li>laser pointers</li>
<li>lasagna</li>
</ul>
<p>Top 3 things cats hate:</p>
<ol>
<li>flea treatment</li>
<li>thunder</li>
<li>other cats</li>
</ol>
<form action="https://freecatphotoapp.com/submit-cat-photo">
<label><input type="radio" name="indoor-outdoor"> Indoor</label>
<label><input type="radio" name="indoor-outdoor"> Outdoor</label>
<label><input type="checkbox" name="personality"> Loving</label>
<label><input type="checkbox" name="personality"> Lazy</label>
<label><input type="checkbox" name="personality"> Crazy</label>
<input type="text" placeholder="cat photo URL" required>
<button type="submit">Submit</button>
</form>
</div>
```
</div>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
</section>