html运行实例（bs_form_size）-搜寻教程库

代码示例：（标识：bs_form_size）
<!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.bundle.js"></script>
</head>
<body>

<div class="p-4">
  <h2>表单控件大小</h2>
  <p>您可用 .form-control-lg 或 .form-control-sm 更改 .form-control 输入控件的大小：</p>
  <form>
    <input type="text" class="form-control form-control-lg" placeholder="大型输入控件">
    <input type="text" class="form-control mt-3" placeholder="普通输入控件">
    <input type="text" class="form-control form-control-sm mt-3" placeholder="小型输入控件">
  </form>
</div>

</body>
</html>