bootstrap导航栏下拉问题 财富值92

2016-10-29 17:27发布

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下面代码是用bootstrap写的，为什么在小屏下点击菜单按钮无法显示下拉？

 <!DOCTYPE html> <html> <head>     <title>bootstrap</title>     <meta charset = "utf-8">     <link rel="stylesheet" href="http://cdn.bootcss.com/bootstrap/3.3.0/css/bootstrap.min.css">     <script src="http://cdn.bootcss.com/jquery/1.11.1/jquery.min.js"></script>     <script src="http://cdn.bootcss.com/bootstrap/3.3.0/js/bootstrap.min.js"></script> </head> <body>     <nav class = "navbar navbar-default " role="navigation">         <div class="navbar-header ">             <a class="navbar-brand " href="#">菜鸟教程</a>             <button class = "navbar-toggle" data-toggle = "collapse">                                          <span class = "icon-bar"></span>                     <span class = "icon-bar"></span>                     <span class = "icon-bar"></span>              </button>         </div>                  <div class = "collapse navbar-collapse" id="example-navbar-collapse">             <ul class = "nav navbar-nav ">                 <li ><a href = "#">bootstrap</a></li>                 <li ><a href = "#">bootstrap</a></li>                 <li class = "dropdown">                      <a  class = "dropdown-toggle" data-toggle = "dropdown" href = "#">bootstrap <span class = "caret"></span></a>                      <ul class = "dropdown-menu">                         <li><a href = "#">1</a></li>                         <li><a href = "#">2</a></li>                         <li><a href = "#">3</a></li>                     </ul>                 </li>             </ul>         </div>     </nav>      <div class = "container">               </div>         </body> </html>
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3条回答
axun - 这个人很懒，什么都没留下
2016-10-29 17:36

意思是你点击这个button后要展开/收起哪个导航条，仔细看bootstrap文档不难发现这个问题。

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