编程教程示范演示-小库网

Bootstrap 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://cdn.staticfile.net/twitter-bootstrap/4.3.1/css/bootstrap.min.css">
  <script src="https://cdn.staticfile.net/jquery/3.2.1/jquery.min.js"></script>
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<div class="container mt-3">
  <h2>内容排列</h2>
  <p> .justify-content-*-start 类是在不同屏幕上在从开始位置 (左对齐) 上显示子元素。 <strong>注意:</strong>左对齐是默认的。</p>
  
  <p><code>.justify-content-start</code>:</p>
  <div class="d-flex justify-content-start bg-secondary mb-3">
    <div class="p-2 bg-info">Flex item 1</div>
    <div class="p-2 bg-warning">Flex item 2</div>
    <div class="p-2 bg-primary">Flex item 3</div>
  </div>

<p><code>.justify-content-sm-start</code>:</p>
  <div class="d-flex justify-content-sm-start bg-secondary mb-3">
    <div class="p-2 bg-info">Flex item 1</div>
    <div class="p-2 bg-warning">Flex item 2</div>
    <div class="p-2 bg-primary">Flex item 3</div>
  </div>

<p><code>.justify-content-md-start</code>:</p>
  <div class="d-flex justify-content-md-start bg-secondary mb-3">
    <div class="p-2 bg-info">Flex item 1</div>
    <div class="p-2 bg-warning">Flex item 2</div>
    <div class="p-2 bg-primary">Flex item 3</div>
  </div>
  
  <p><code>.justify-content-lg-start</code>:</p>
  <div class="d-flex justify-content-lg-start bg-secondary mb-3">
    <div class="p-2 bg-info">Flex item 1</div>
    <div class="p-2 bg-warning">Flex item 2</div>
    <div class="p-2 bg-primary">Flex item 3</div>
  </div>
  
  <p><code>.justify-content-xl-start</code>:</p>
  <div class="d-flex justify-content-xl-start bg-secondary mb-3">
    <div class="p-2 bg-info">Flex item 1</div>
    <div class="p-2 bg-warning">Flex item 2</div>
    <div class="p-2 bg-primary">Flex item 3</div>
  </div>

</div>