<!DOCUTYPE html>
<html>
<head>
<title>Longli Boostrap Test</title>
<meta name="viemport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="Content-Type" content="text/html; charset=gbk" />
<link href="http://www.bootcss.com/assets/css/bootstrap.css?v2.3.0" rel="stylesheet" media="screen">
</head>
<body>
<div style="border:solid 10px;padding:50px;">
<div class="dropdown">
<a href="javascript:void(0);" class="btn dropdown-toggle btn-large btn-danger" data-toggle="dropdown">Dropdown <b class="caret"></b></a>
<ul class="dropdown-menu" role="menu" aria-labelledby="dLabel">
<li><a tabindex="-1" href="#">Action</a></li>
<li><a tabindex="-1" href="#">Another action</a></li>
<li><a tabindex="-1" href="#">Something else here</a></li>
<li class="divider"></li>
<li><a tabindex="-1" href="#">Separated link</a></li>
</ul>
</div>
</div>
<script src="http://code.jquery.com/jquery.js"></script>
<script src="http://www.bootcss.com/assets/js/bootstrap.js?v2.3.0"></script>
</body>
</html>