freeCodeCamp/curriculum/challenges/chinese/03-front-end-libraries/bootstrap/line-up-form-elements-responsively-with-bootstrap.md

---
id: bad87fee1348bd9aec908845
required:
  - link: 'https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.2.0/css/font-awesome.css'
    raw: true
challengeType: 0
forumTopicId: 18225
title: 使用 Bootstrap 响应式排列表单元素
---

## Description
<section id='description'>
现在让我们把你表单里的 <code>input</code> 元素和 submit <code>button</code> （提交按钮）放在同一行。跟着之前的做法来就行：准备好一个具有 <code>row</code> class 的 <code>div</code> 元素还有几个具有 <code>col-xs-*</code> class 的 <code>div</code> 元素。
先把你表单的 text <code>input</code> （文本输入框）和 submit <code>button</code> （提交按钮）放进具有 <code>row</code> class 的 <code>div</code> 中。再用 <code>col-xs-7</code> class 的 div 包裹表单的 text <code>input</code> （文本输入框），<code>col-xs-5</code> class 的 div 包裹表单的 submit <code>button</code> （提交按钮）。
这是我们到目前为止 Cat Photo App 的最后一个挑战了。我希望你能喜欢 Font Awesome， Bootstrap，和响应式设计！
</section>

## Instructions
<section id='instructions'>

</section>

## Tests
<section id='tests'>

```yml
tests:
  - text: 确保提交按钮和文本输入框都在同一个具有 class 属性 <code>row</code> 的 div 元素中。
    testString: assert($("div.row:has(input[type=\"text\"])").length > 0 &&  $("div.row:has(button[type=\"submit\"])").length > 0);
  - text: 表单的文本输入框应该嵌入到具有 class 属性 <code>col-xs-7</code> 的 div 内。
    testString: assert($("div.col-xs-7:has(input[type=\"text\"])").length > 0);
  - text: 表单的提交按钮应该嵌入到具有  class 属性 <code>col-xs-5</code> 的 div 内。
    testString: assert($("div.col-xs-5:has(button[type=\"submit\"])").length > 0);
  - text: 确保每一个 <code>div</code> 元素都有一个闭合标签。
    testString: assert(code.match(/<\/div>/g) && code.match(/<div/g) && code.match(/<\/div>/g).length === code.match(/<div/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>
  h2 {
    font-family: Lobster, Monospace;
  }

  .thick-green-border {
    border-color: green;
    border-width: 10px;
    border-style: solid;
    border-radius: 50%;
  }

</style>

<div class="container-fluid">
  <div class="row">
    <div class="col-xs-8">
      <h2 class="text-primary text-center">CatPhotoApp</h2>
    </div>
    <div class="col-xs-4">
      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
    </div>
  </div>
  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
  <div class="row">
    <div class="col-xs-4">
      <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
    </div>
    <div class="col-xs-4">
      <button class="btn btn-block btn-info"><i class="fa fa-info-circle"></i> Info</button>
    </div>
    <div class="col-xs-4">
      <button class="btn btn-block btn-danger"><i class="fa fa-trash"></i> Delete</button>
    </div>
  </div>
  <p>Things cats <span class="text-danger">love:</span></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">
    <div class="row">
      <div class="col-xs-6">
        <label><input type="radio" name="indoor-outdoor"> Indoor</label>
      </div>
      <div class="col-xs-6">
        <label><input type="radio" name="indoor-outdoor"> Outdoor</label>
      </div>
    </div>
    <div class="row">
      <div class="col-xs-4">
        <label><input type="checkbox" name="personality"> Loving</label>
      </div>
      <div class="col-xs-4">
        <label><input type="checkbox" name="personality"> Lazy</label>
      </div>
      <div class="col-xs-4">
        <label><input type="checkbox" name="personality"> Crazy</label>
      </div>
    </div>
    <input type="text" class="form-control" placeholder="cat photo URL" required>
    <button type="submit" class="btn btn-primary"><i class="fa fa-paper-plane"></i> Submit</button>
  </form>
</div>
```

</div>



</section>

## Solution
<section id='solution'>

```html
<link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet" type="text/css">
<style>
  h2 {
    font-family: Lobster, Monospace;
  }

  .thick-green-border {
    border-color: green;
    border-width: 10px;
    border-style: solid;
    border-radius: 50%;
  }

</style>

<div class="container-fluid">
  <div class="row">
    <div class="col-xs-8">
      <h2 class="text-primary text-center">CatPhotoApp</h2>
    </div>
    <div class="col-xs-4">
      <a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
    </div>
  </div>
  <img src="https://bit.ly/fcc-running-cats" class="img-responsive" alt="Three kittens running towards the camera.">
  <div class="row">
    <div class="col-xs-4">
      <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
    </div>
    <div class="col-xs-4">
      <button class="btn btn-block btn-info"><i class="fa fa-info-circle"></i> Info</button>
    </div>
    <div class="col-xs-4">
      <button class="btn btn-block btn-danger"><i class="fa fa-trash"></i> Delete</button>
    </div>
  </div>
  <p>Things cats <span class="text-danger">love:</span></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="/submit-cat-photo">
    <div class="row">
      <div class="col-xs-6">
        <label><input type="radio" name="indoor-outdoor"> Indoor</label>
      </div>
      <div class="col-xs-6">
        <label><input type="radio" name="indoor-outdoor"> Outdoor</label>
      </div>
    </div>
    <div class="row">
      <div class="col-xs-4">
        <label><input type="checkbox" name="personality"> Loving</label>
      </div>
      <div class="col-xs-4">
        <label><input type="checkbox" name="personality"> Lazy</label>
      </div>
      <div class="col-xs-4">
        <label><input type="checkbox" name="personality"> Crazy</label>
      </div>
    </div>
    <div class="row">
      <div class="col-xs-7">
        <input type="text" class="form-control" placeholder="cat photo URL" required>
      </div>
      <div class="col-xs-5">
        <button type="submit" class="btn btn-primary"><i class="fa fa-paper-plane"></i> Submit</button>
      </div>
    </div>
  </form>
</div>
```

</section>