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<!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.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"> <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 右对齐方向，并使用 .flex-sm|md|lg|xl-row-reverse 在特定屏幕尺寸上右对齐方向。请调整浏览器窗口大小来查看效果。</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">Flex item 1</div> <div class="p-2 bg-warning">Flex item 2</div> <div class="p-2 bg-primary">Flex item 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">Flex item 1</div> <div class="p-2 bg-warning">Flex item 2</div> <div class="p-2 bg-primary">Flex item 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">Flex item 1</div> <div class="p-2 bg-warning">Flex item 2</div> <div class="p-2 bg-primary">Flex item 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">Flex item 1</div> <div class="p-2 bg-warning">Flex item 2</div> <div class="p-2 bg-primary">Flex item 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">Flex item 1</div> <div class="p-2 bg-warning">Flex item 2</div> <div class="p-2 bg-primary">Flex item 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">Flex item 1</div> <div class="p-2 bg-warning">Flex item 2</div> <div class="p-2 bg-primary">Flex item 3</div> </div> </div> </body> </html>