<!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 href="https://www.w3schools.cn/lib/bootstrap/5.1.3/css/bootstrap.min.css" rel="stylesheet">
<script src="https://www.w3schools.cn/lib/bootstrap/5.1.3/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h2>水平方向</h2>
<p>使用 .flex-row 使弹性项目并排显示（默认）。</p>
<p>使用 .flex-row-reverse 将方向右对齐，并使用 .flex-sm|md|lg|xl-row-reverse 在特定屏幕尺寸上将方向右对齐。 调整浏览器窗口大小以查看效果。</p>
<p><code>flex-row-reverse:</code></p>
<div class="d-flex flex-row-reverse bg-secondary mb-3">
<div class="p-2 bg-info">弹性项目 2</div>
<div class="p-2 bg-warning">弹性项目 2</div>
<div class="p-2 bg-primary">弹性项目 3</div>
</div>
<p><code>flex-sm-row-reverse:</code></p>
<div class="d-flex flex-sm-row-reverse bg-secondary mb-3">
<div class="p-2 bg-info">弹性项目 2</div>
<div class="p-2 bg-warning">弹性项目 2</div>
<div class="p-2 bg-primary">弹性项目 3</div>
</div>
<p><code>flex-md-row-reverse:</code></p>
<div class="d-flex flex-md-row-reverse bg-secondary mb-3">
<div class="p-2 bg-info">弹性项目 2</div>
<div class="p-2 bg-warning">弹性项目 2</div>
<div class="p-2 bg-primary">弹性项目 3</div>
</div>
<p><code>flex-lg-row-reverse:</code></p>
<div class="d-flex flex-lg-row-reverse bg-secondary mb-3">
<div class="p-2 bg-info">弹性项目 2</div>
<div class="p-2 bg-warning">弹性项目 2</div>
<div class="p-2 bg-primary">弹性项目 3</div>
</div>
<p><code>flex-xl-row-reverse:</code></p>
<div class="d-flex flex-xl-row-reverse bg-secondary mb-3">
<div class="p-2 bg-info">弹性项目 2</div>
<div class="p-2 bg-warning">弹性项目 2</div>
<div class="p-2 bg-primary">弹性项目 3</div>
</div>
<p><code>flex-xxl-row-reverse:</code></p>
<div class="d-flex flex-xxl-row-reverse bg-secondary mb-3">
<div class="p-2 bg-info">弹性项目 2</div>
<div class="p-2 bg-warning">弹性项目 2</div>
<div class="p-2 bg-primary">弹性项目 3</div>
</div>
</div>
</body>
</html>