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<!DOCTYPE html> <html> <head> <title>Bootstrap5 实例</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link href="https://cdn.staticfile.org/twitter-bootstrap/5.1.1/css/bootstrap.min.css" rel="stylesheet"> <script src="https://cdn.staticfile.org/twitter-bootstrap/5.1.1/js/bootstrap.bundle.min.js"></script> </head> <body> <div class="container mt-3"> <h2>基线位置上对齐单个元素</h2> <p>.align-self-*-baseline 类据不同屏幕设备，让单独一个子元素显示在基线位置。</p> <p>重置浏览器窗口大小，查看效果。 <strong>注意:</strong> align-self-stretch 是默认的。</p> <p><code>.align-self-baseline</code>:</p> <div class="d-flex bg-light" style="height:150px"> <div class="p-2 border">Flex item 1</div> <div class="p-2 border align-self-baseline">Flex item 2</div> <div class="p-2 border">Flex item 3</div> </div> <br> <p><code>.align-self-sm-baseline</code>:</p> <div class="d-flex bg-light" style="height:150px"> <div class="p-2 border">Flex item 1</div> <div class="p-2 border align-self-sm-baseline">Flex item 2</div> <div class="p-2 border">Flex item 3</div> </div> <br> <p><code>.align-self-md-baseline</code>:</p> <div class="d-flex bg-light" style="height:150px"> <div class="p-2 border">Flex item 1</div> <div class="p-2 border align-self-md-baseline">Flex item 2</div> <div class="p-2 border">Flex item 3</div> </div> <br> <p><code>.align-self-lg-baseline</code>:</p> <div class="d-flex bg-light" style="height:150px"> <div class="p-2 border">Flex item 1</div> <div class="p-2 border align-self-lg-baseline">Flex item 2</div> <div class="p-2 border">Flex item 3</div> </div> <br> <p><code>.align-self-xl-baseline</code>:</p> <div class="d-flex bg-light" style="height:150px"> <div class="p-2 border">Flex item 1</div> <div class="p-2 border align-self-xl-baseline">Flex item 2</div> <div class="p-2 border">Flex item 3</div> </div> <br> <p><code>.align-self-xxl-baseline</code>:</p> <div class="d-flex bg-light" style="height:150px"> <div class="p-2 border">Flex item 1</div> <div class="p-2 border align-self-xxl-baseline">Flex item 2</div> <div class="p-2 border">Flex item 3</div> </div> <br> </div> </body> </html>
运行结果：