freeCodeCamp/curriculum/challenges/chinese/03-front-end-libraries/bootstrap/create-a-custom-heading.md

5.5 KiB

id challengeType forumTopicId localeTitle
bad87fee1348bd9aede08845 0 16816 创建自定义标题

Description

让我们来为 Cat Photo App 做一个导航吧,把标题和惬意的猫咪图片放在同一行。 记住,由于 Bootstrap 使用了响应式栅格系统,使得我们可以很方便的放置元素并为元素指定相对的宽度。大部分的 Bootstrap 的 class 都能用在 div 元素上。 把我们的第一张图片和 h2 元素用一个简单的 <div class="row"> 元素包裹起来。再用 <div class="col-xs-8"> 包裹我们的 h2 元素,用 <div class="col-xs-4"> 包裹我们的图片,这样它们就能位于同一行了。 注意现在图片是否与文字大小一致呢?

Instructions

Tests

tests:
  - text: <code>h2</code> 元素和最上方的 <code>img</code> 元素应该一起内嵌于具有 <code>row</code> class 的 <code>div</code> 元素内。
    testString: assert($("div.row:has(h2)").length > 0 && $("div.row:has(img)").length > 0);
  - text: 最上方的 <code>img</code> 元素应该内嵌于含有 <code>col-xs-4</code> class 的 <code>div</code> 元素中。
    testString: assert($("div.col-xs-4:has(img)").length > 0 && $("div.col-xs-4:has(div)").length === 0);
  - text: <code>h2</code> 元素应该内嵌于含有 <code>col-xs-8</code> class的 <code>div</code> 元素中。
    testString: assert($("div.col-xs-8:has(h2)").length > 0 && $("div.col-xs-8:has(div)").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);

Challenge Seed

<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">
  <h2 class="text-primary text-center">CatPhotoApp</h2>

  <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>

  <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">Like</button>
    </div>
    <div class="col-xs-4">
      <button class="btn btn-block btn-info">Info</button>
    </div>
    <div class="col-xs-4">
      <button class="btn btn-block btn-danger">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">
    <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

<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">Like</button>
    </div>
    <div class="col-xs-4">
      <button class="btn btn-block btn-info">Info</button>
    </div>
    <div class="col-xs-4">
      <button class="btn btn-block btn-danger">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">
    <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>