<!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>从开头对齐自身</h2>
<p>使用 .align-self-*-start 类在不同屏幕上的 flex 容器中从头开始对齐 flex 项。</p>
<p>请调整浏览器窗口大小来查看效果。<b>Note:</b>align-self-stretch 是默认的。</p>
<p><code>.align-self-start</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-start">Flex item 2</div>
<div class="p-2 border">Flex item 3</div>
</div>
<br>
<p><code>.align-self-sm-start</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-start">Flex item 2</div>
<div class="p-2 border">Flex item 3</div>
</div>
<br>
<p><code>.align-self-md-start</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-start">Flex item 2</div>
<div class="p-2 border">Flex item 3</div>
</div>
<br>
<p><code>.align-self-lg-start</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-start">Flex item 2</div>
<div class="p-2 border">Flex item 3</div>
</div>
<br>
<p><code>.align-self-xl-start</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-start">Flex item 2</div>
<div class="p-2 border">Flex item 3</div>
</div>
<br>
<br>
<p><code>.align-self-xxl-start</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-start">Flex item 2</div>
<div class="p-2 border">Flex item 3</div>
</div>
<br>
</div>
</body>
</html>