freeCodeCamp/curriculum/challenges/chinese/03-front-end-libraries/bootstrap/make-images-mobile-responsive.md

---
id: bad87fee1348bd9acde08812
challengeType: 0
forumTopicId: 18232
title: 使图片自适应移动端
---

## Description
<section id='description'>
首先，在已有的图片下面添加一张新的图片. 设置 <code>src</code> 属性为 <code>https://bit.ly/fcc-running-cats</code>。
如果图片的大小恰恰和我们手机屏幕尺寸大小一样自然是最好的。
幸运的是现在通过 Bootstrap，我们仅仅只需要为 image 标签上设置 class 属性为 <code>img-responsive</code> 就可以让它完美的适应你页面的宽度了。
</section>

## Instructions
<section id='instructions'>

</section>

## Tests
<section id='tests'>

```yml
tests:
  - text: 该页面拥有总计两个图片。
    testString: assert($("img").length === 2);
  - text: 新的图片应该在旧的图片下面并且含有 class 属性 <code>img-responsive</code>。
    testString: assert($("img:eq(1)").hasClass("img-responsive"));
  - text: 新的图片不应该含有 class 属性 <code>smaller-image</code>。
    testString: assert(!$("img:eq(1)").hasClass("smaller-image"));
  - text: 新图片的 <code>src</code> 属性应该为 <code>https&#58;//bit.ly/fcc-running-cats</code>。
    testString: assert($("img:eq(1)").attr("src") === "https://bit.ly/fcc-running-cats");
  - text: 确保新的 <code>img</code> 元素有一个闭合的右尖括号 “/>”。
    testString: assert(code.match(/<img/g) && code.match(/<img[^<]*>/g).length === 2 && code.match(/<img/g).length === 2);

```

</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">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>

  <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'>

```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">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">

  <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="/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>
```

</section>