html运行实例（bs_progressbar

代码示例：（标识：bs_progressbar_1）
<!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 href="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/5.1.2/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/5.1.2/js/bootstrap.min.js"></script>
</head>
<body>

<div class="p-4">
  <h2>基础进度条</h2>
  <p>如需创建默认进度条，请将 .progress 类添加到容器元素并将 progress-bar 类添加到其子元素。请使用 CSS width 属性设置进度条的宽度：</p>
  <div class="progress">
    <div class="progress-bar" style="width:70%"></div>
  </div>
</div>

</body>
</html>