简单教程
提交运行
代码编辑器：
<!DOCTYPE htm> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"> <script src="https://cdn.bootcss.com/jquery/1.12.4/jquery.js"></script> <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> <nav class="navbar navbar-default" role="navigation"> <div class="container-fluid"> <div class="navbar-header"> <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#example-navbar-collapse"> <span class="sr-only">切换导航</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> <a class="navbar-brand" href="#">简单教程</a> </div> <div class="collapse navbar-collapse" id="example-navbar-collapse"> <ul class="nav navbar-nav"> <li class="active"><a href="#">HTML 5</a></li> <li><a href="#">CSS 3</a></li> <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown"> 后端 <b class="caret"></b> </a> <ul class="dropdown-menu"> <li><a href="#">Java</a></li> <li><a href="#">Python</a></li> <li><a href="#">PHP</a></li> <li class="divider"></li> <li><a href="#">分离的链接</a></li> <li class="divider"></li> <li><a href="#">另一个分离的链接</a></li> </ul> </li> </ul> </div> </div> </nav>
运行结果：