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<head>
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<title>Document</title>
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<style type="text/css">
body{
margin-top: 50px;
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</style>
</head>
<body>
<div class="navbar navbar-inverse navbar-fixed-top" id="menu-nav">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
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<span class="sr-only">切换导航</span>
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<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">浏览器</a>
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="#ad-carousel">综述</a></li>
<li><a href="#summary-container">简述</a></li>
<!-- 下拉菜单 -->
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">特点 <span class="caret"></span></a>
<ul class="dropdown-menu">
<!-- href="#feature-tab"绑定详情页ID可定位 data-tab可以使用TAB切换选项 -->
<li><a href="#feature-tab" data-tab="tab-chrome">Chrome</a></li>
<li><a href="#feature-tab" data-tab="tab-firefox">Firefox</a></li>
<li><a href="#feature-tab" data-tab="tab-safari">Safari</a></li>
<li><a href="#feature-tab" data-tab="tab-opera">Opera</a></li>
<li><a href="#feature-tab" data-tab="tab-ie">IE</a></li>
</ul>
</li>
<li>
<a href="#" data-toggle="modal" data-target="#about-modal">关于</a>
</li>
</ul>
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<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title" id="myModalLabel">标题</h4>
</div>
<div class="modal-body">文本</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
<button type="button" class="btn btn-primary">提交</button>
</div>
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</div>
</div>
<h1 class="text-center">你好</h1>
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请引用最新的文件，请使用更高的浏览器。
