bootstrap实现导航栏的响应式布局,当在小屏幕、手机屏幕浏览时自动折叠隐藏

<!DOCTYPE html>  
<html>  
<head>  
    <title>bootstrap实现导航栏的响应式布局,当在小屏幕、手机屏幕浏览时自动折叠隐藏</title>  
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  
    <meta name="viewport" content="width=device-width, initial-scale=1.0">  
    <link href="bootstrap.min.css" rel="stylesheet">  
    <style type="text/css">
    	.nav-logo{
    		float: left;
		    height: 40px;
		    margin-top: 5px;
		    overflow: hidden;
    	}
    	.nav-logo a{
    		margin: 0;
    		padding: 0;
    	}
    </style>
</head>  
<body>  
     <!--导航-->  
    <div class="navbar navbar-fixed-top navbar-inverse" >  
      <div class="container">  
      	<div class="nav-logo">
        	<a class="" href="#">
        		<img class="img-responsive" src="logo.png" alt="北京市XXXX科技有限公司" style="height: 100%;width: auto;" />
        	</a>
        </div>
        <div class="navbar-header">  
          <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#navBar">  
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
          </button>
        </div>  
        <div class="collapse navbar-collapse navbar-right" id="navBar">  
          <ul class="nav navbar-nav">
            <li><a href="#">首页</a></li>
            <li><a href="#">公司介绍</a></li>
            <li class="dropdown">
            	<a href="#" class="dropdown-toggle" data-toggle="dropdown">
            		产品中心<span class="caret"></span>
            	</a>
            	<ul class="dropdown-menu" role="menu">
                    <li><a href="#">SmartCall智能呼</a></li>
                    <li><a href="#">运营管理平台OMS</a></li>
                    <li><a href="#">客户关系管理系统</a></li>
                    <li><a href="#">电销系统</a></li>
                    <li><a href="#">知识库管理</a></li>
                    <li><a href="#">排班管理模块</a></li>
                    <li><a href="#">考试培训系统</a></li>
					<li><a href="#">多媒体调度指挥系统</a></li>
				</ul>
            </li>
            <li class="dropdown">
            	<a href="#" class="dropdown-toggle" data-toggle="dropdown">
            		行业方案<span class="caret"></span>
            	</a>
            	<ul class="dropdown-menu" role="menu">
                    <li><a href="#">多媒体呼叫中心</a></li>
                    <li><a href="#">保险行业</a></li>
                    <li><a href="#">制造行业</a></li>
                    <li><a href="#">政府部门</a></li>
                    <li><a href="#">教育行业</a></li>
                    <li><a href="#">酒店/旅游</a></li>
                    <li><a href="#">电子商务</a></li>
                    <li><a href="#">社区服务</a></li>
                    <li><a href="#">铁路/客运</a></li>
                    <li><a href="#">医疗卫生</a></li>
				</ul>
            </li>
            <li><a href="#">公司新闻</a></li>
            <li><a href="#">典型客户</a></li>
            <li><a href="#">合做伙伴</a></li>
            <li><a href="#">联系咱们</a></li>
          </ul>  
        </div>
      </div>
    </div>  
    
    
	<script src="../assets/js/jquery-2.2.1.min.js"></script>  
    <script src="bootstrap.min.js"></script>  
</body>  
</html>