编程教程示范演示-空若网

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>
  <script src="https://cdn.staticfile.net/popper.js/1.15.0/umd/popper.min.js"></script>
  <script src="https://cdn.staticfile.net/twitter-bootstrap/4.3.1/js/bootstrap.min.js"></script>

<div class="container">
  <h2>多种颜色的进度条</h2>
  <p>Bootstrap4 提供了以下几种进度条颜色:</p> 
  <div class="progress">
    <div class="progress-bar" style="width:30%"></div>
  </div>
  <br>
  <div class="progress">
    <div class="progress-bar bg-success" style="width:40%"></div>
  </div>
  <br>
  <div class="progress">
    <div class="progress-bar bg-info" style="width:50%"></div>
  </div>
  <br>
  <div class="progress">
    <div class="progress-bar bg-warning" style="width:60%"></div>
  </div>
  <br>
  <div class="progress">
    <div class="progress-bar bg-danger" style="width:70%"></div>
  </div>
</div>