AI 编程工具xxxxxxxxxx<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.net/twitter-bootstrap/5.1.1/css/bootstrap.min.css" rel="stylesheet"> <script src="https://cdn.staticfile.net/twitter-bootstrap/5.1.1/js/bootstrap.bundle.min.js"></script></head><body><div class="container mt-3"> <h2>基础列表组</h2> <ul class="list-group"> <li class="list-group-item">第一项</li> <li class="list-group-item">第二项</li> <li class="list-group-item">第三项</li> </ul></div></body></html>