<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.2/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h1>网格实例</h1>
<p>本例演示了在小型、中型、大型、xlarge 和 xxlarge 设备上的 50%/50% 拆分。在超小型设备上，它将堆叠（100% 宽度）。</p>
<p>请调整浏览器窗口大小来查看效果。</p>
<div class="row">
<div class="col-sm-6 bg-primary text-white p-3">
Lorem ipsum...
</div>
<div class="col-sm-6 bg-dark text-white p-3">
Sed ut perspiciatis...
</div>
</div>
</div>
</body>
</html>