bootstrap 在线编辑器 | bootstrap代码测试

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap 示例</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://www.cainiaomax.com/lib/bootstrap/3.4.1/css/bootstrap.min.css">
  <script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.5.1.min.js"></script>
  <script src="https://www.cainiaomax.com/lib/bootstrap/3.4.1/js/bootstrap.min.js"></script>
</head>
<body>

<div class="container">
  <h3>导航栏表单</h3>
  <p>使用 .navbar-form 类在导航栏内垂直对齐表单元素（与链接相同的填充）。</p>
</div>

</body>
</html>

报个问题: