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<!DOCTYPE html> <html> <head> <title>Bootstrap5 实例 边距实用程序</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> <h2>边距实用程序</h2> <div class="container mt-3 text-center"> <div class="row"> <div class="col-md-4 bg-primary">.col-md-4</div> <div class="col-md-4 ms-auto bg-info">.col-md-4 .ms-auto</div> </div> <div class="row"> <div class="col-md-3 ms-md-auto bg-secondary">.col-md-3 .ms-md-auto</div> <div class="col-md-3 ms-md-auto bg-success">.col-md-3 .ms-md-auto</div> </div> <div class="row"> <div class="col-auto me-auto bg-info">.col-auto .me-auto</div> <div class="col-auto bg-warning">.col-auto</div> </div> </div> </body> </html>
运行结果：