菜鸟教程在线编辑器

AI 编程工具
 
                <!DOCTYPE html>
<html>
<head>
  <title>Bootstrap5 实例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.staticfile.net/twitter-bootstrap/5.1.1/css/bootstrap.min.css" rel="stylesheet">
  <script src="https://cdn.staticfile.net/twitter-bootstrap/5.1.1/js/bootstrap.bundle.min.js"></script>
</head>
<body>

<div class="container mt-3">
  <p>通过添加 .btn-block 类可以设置块级按钮，.d-grid 类设置在父级元素中：</p>
  <div class="d-grid">
    <button type="button" class="btn btn-primary btn-block">按钮 1</button>
  </div>
</div>

</body>
</html>
              