代码示例：（标识：bs_flex-order-responsive）
<!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>顺序</h2>
<p>使用 .order 类更改特定 flex 项的视觉顺序。有效的类是从 0 到 12。</p>
<p>在不同的屏幕尺寸上使用 .order-sm|md|lg|xl-0-12 来实现这种效果。还可以组合这些类来形成更加灵活的布局。</p>
<p>请调整浏览器窗口大小来查看效果。</p>
<p><code>.order</code>:</p>
<div class="d-flex mb-3">
<div class="p-2 order-3 bg-info">Flex item 1</div>
<div class="p-2 order-2 bg-warning">Flex item 2</div>
<div class="p-2 order-1 bg-primary">Flex item 3</div>
</div>
<p><code>.order-sm</code>:</p>
<div class="d-flex mb-3">
<div class="p-2 order-sm-3 bg-info">Flex item 1</div>
<div class="p-2 order-sm-2 bg-warning">Flex item 2</div>
<div class="p-2 order-sm-1 bg-primary">Flex item 3</div>
</div>
<p><code>.order-md</code>:</p>
<div class="d-flex mb-3">
<div class="p-2 order-md-3 bg-info">Flex item 1</div>
<div class="p-2 order-md-2 bg-warning">Flex item 2</div>
<div class="p-2 order-md-1 bg-primary">Flex item 3</div>
</div>
<p><code>.order-lg</code>:</p>
<div class="d-flex mb-3">
<div class="p-2 order-lg-3 bg-info">Flex item 1</div>
<div class="p-2 order-lg-2 bg-warning">Flex item 2</div>
<div class="p-2 order-lg-1 bg-primary">Flex item 3</div>
</div>
<p><code>.order-xl</code>:</p>
<div class="d-flex mb-3">
<div class="p-2 order-xl-3 bg-info">Flex item 1</div>
<div class="p-2 order-xl-2 bg-warning">Flex item 2</div>
<div class="p-2 order-xl-1 bg-primary">Flex item 3</div>
</div>
<p><code>.order-xxl</code>:</p>
<div class="d-flex mb-3">
<div class="p-2 order-xxl-3 bg-info">Flex item 1</div>
<div class="p-2 order-xxl-2 bg-warning">Flex item 2</div>
<div class="p-2 order-xxl-1 bg-primary">Flex item 3</div>
</div>
</div>
</body>
</html>
