本文实例为大家分享了Bootstrap下拉菜单的具体代码，供大家参考，具体内容如下
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap-下拉菜单标题</title>
<meta charset="utf-8">
<link rel="stylesheet" href="css/bootstrap.min.css" rel="external nofollow" >
<style>
body {
padding-top: 150px;
padding-bottom: 40px;
font-family: '宋体';
}
</style>
</head>
<body>
<div class="container">
<div class="dropdown">
<button type="button" class="btn dropdown-toggle" data-toggle="dropdown"
style="font-size:36px;: blue; width:100;height: 50; ">
常用语种 <span class="caret"> </span>
</button>
<ul class="dropdown-menu" role="menu" aria-labelledby="dropdownMenu1">
<li role="presentation" class="dropdown-header">
下拉菜单标题
</li>
<li role="presentation" >
<a role="menuitem" tabindex="-1" href="#" rel="external nofollow" rel="external nofollow" >中文</a>
</li>
<li role="presentation" class="dropdown-header">
下拉菜单标题
</li>
<li role="presentation">
<a role="menuitem" tabindex="-1" href="#" rel="external nofollow" rel="external nofollow" >英文</a>
</li>
</ul>
</div>
</div>
<script src="js/jquery.min.js"></script>
<script src="js/bootstrap.min.js"></script>
</body>
</html>
效果图：
