代码示例：（标识：bs_utility_float_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>响应式浮动 </h2>
<p>根据屏幕宽度向左或向右浮动元素，使用响应式浮动类 (.float-*-left|right)：</p>
<p>请调整浏览器窗口大小来查看效果。</p>
<div class="clearfix">
<div class="float-sm-end">在小型屏幕或更宽的屏幕上向右浮动</div><br>
<div class="float-md-end">在中型屏幕或更宽的屏幕上向右浮动</div><br>
<div class="float-lg-end">在大型屏幕或更宽的屏幕上向右浮动</div><br>
<div class="float-xl-end">在超大型屏幕或更宽的屏幕上向右浮动</div><br>
<div class="float-xxl-end">在特大型屏幕或更宽的屏幕上向右浮动</div><br>
<div class="float-none">不进行浮动</div>
</div>
</div>
</body>
</html>
