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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>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>