Bootstrap，来自 Twitter，是目前最受欢迎的前端框架。Bootstrap 是基于 HTML、CSS、JAVASCRIPT 的，它简洁灵活，使得 Web 开发更加快捷。 - 在线编辑器

          <!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://apps.bdimg.com/libs/bootstrap/3.3.4/css/bootstrap.min.css">
  <script src="https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
  <script src="https://apps.bdimg.com/libs/bootstrap/3.3.4/js/bootstrap.min.js"></script>
</head>
<body>

  <div class="container">
    <div class="jumbotron">
      <h1>我的第一个 Bootstrap 页面</h1>
    </div>
    <div class="row">
      <div class="col-xs-4">
        <h3>Column 1</h3>
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit...</p>
        <p>Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris...</p>
      </div>
      <div class="col-xs-4">
        <h3>Column 1</h3>
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit...</p>
        <p>Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris...</p>
      </div>
      <div class="col-xs-4">
        <h3>Column 1</h3>
        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit...</p>
        <p>Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris...</p>
      </div>
    </div>
  </div>

</body>
</html>
        