freeCodeCamp/curriculum/challenges/chinese/03-front-end-libraries/bootstrap/create-a-block-element-boot...

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id title challengeType videoUrl localeTitle
bad87fee1348cd8acef08812 Create a Block Element Bootstrap Button 0 创建一个块元素引导按钮

Description

通常,具有btnbtn-default类的button元素仅与它们包含的文本一样宽。例如: <button class="btn btn-default">Submit</button>此按钮只能与“提交”一词一样宽。 提交通过使用附加的btn-block类来阻止元素,您的按钮将拉伸以填充页面的整个水平空间,其后面的任何元素将流到块下方的“新行”。 <button class="btn btn-default btn-block">Submit</button>此按钮占用可用宽度的100。 提交请注意,这些按钮仍需要btn类。将Bootstrap的btn-block类添加到Bootstrap按钮。

Instructions

Tests

tests:
  - text: 你的按钮应该仍然有<code>btn</code>和<code>btn-default</code>类。
    testString: 'assert($("button").hasClass("btn") && $("button").hasClass("btn-default"), "Your button should still have the <code>btn</code> and <code>btn-default</code> classes.");'
  - text: 你的按钮应该有类<code>btn-block</code> 。
    testString: 'assert($("button").hasClass("btn-block"), "Your button should have the class <code>btn-block</code>.");'
  - 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, "Make sure all your <code>button</code> elements have a closing tag.");'

Challenge Seed

<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-default">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="/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>

Solution

// solution required