<!DOCTYPE html> <html> <head> <title>菜鸟教程(runoob.com)</title> <meta name="viewport" content="width=device-width, initial-scale=1" charset="utf-8"> <link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css"> <script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script> <script src="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <h2>排版</h2> <p> .list-unstyled 类移除了默认的列表样式,列表项左对齐 (直接子元素):</p> <ul class="list-unstyled"> <li>Coffee</li> <li>Tea <ul> <li>Black tea</li> <li>Green tea</li> </ul> </li> <li>Milk</li> </ul> </div> </body> </html>