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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 pt-3"> <h1>响应式容器</h1> <p>重置浏览器大小查看效果.</p> </div> <div class="container-sm border">.container-sm</div> <div class="container-md mt-3 border">.container-md</div> <div class="container-lg mt-3 border">.container-lg</div> <div class="container-xl mt-3 border">.container-xl</div> <div class="container-xxl mt-3 border">.container-xxl</div> </body> </html>
运行结果：