代码示例：（标识：bs_flex-justify-between-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>分隔对齐内容</h2>
<p>请使用 .justify-content-*-between 在不同屏幕尺寸的 flex 容器内的分隔显示 flex 项目。</p>
<p>请调整浏览器窗口大小来查看效果。</p>
<p><code>.justify-content-between</code>:</p>
<div class="d-flex justify-content-between 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>.justify-content-sm-between</code>:</p>
<div class="d-flex justify-content-sm-between 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>.justify-content-md-between</code>:</p>
<div class="d-flex justify-content-md-between 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>.justify-content-lg-between</code>:</p>
<div class="d-flex justify-content-lg-between 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>.justify-content-xl-between</code>:</p>
<div class="d-flex justify-content-xl-between 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>.justify-content-xxl-between</code>:</p>
<div class="d-flex justify-content-xxl-between 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>
