html：
<link href="/go.html?url=//netdna.bootstrapcdn.com/bootstrap/3.1.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.1.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<style>
body {
padding-top: 50px;
}
.navbar-template {
padding: 40px 15px;
}
</style>
<div class="navbar navbar-default navbar-fixed-top" role="navigation">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="/go.html?url=#">NavBar</a>
</div>
<div class="collapse navbar-collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="/go.html?url=#">Home</a></li>
<li><a href="/go.html?url=https://github.com/fontenele/bootstrap-navbar-dropdowns" target="_blank">GitHub</a></li>
<li>
<a href="/go.html?url=#" class="dropdown-toggle" data-toggle="dropdown">Menu 1 <b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="/go.html?url=#">Action [Menu 1.1]</a></li>
<li><a href="/go.html?url=#">Another action [Menu 1.1]</a></li>
<li><a href="/go.html?url=#">Something else here [Menu 1.1]</a></li>
<li class="divider"></li>
<li><a href="/go.html?url=#">Separated link [Menu 1.1]</a></li>
<li class="divider"></li>
<li><a href="/go.html?url=#">One more separated link [Menu 1.1]</a></li>
<li>
<a href="/go.html?url=#" class="dropdown-toggle" data-toggle="dropdown">Dropdown [Menu 1.1] <b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="/go.html?url=#">Action [Menu 1.2]</a></li>
<li>
<a href="/go.html?url=#" class="dropdown-toggle" data-toggle="dropdown">Dropdown [Menu 1.2] <b class="caret"></b></a>
<ul class="dropdown-menu">
<li>
<a href="/go.html?url=#" class="dropdown-toggle" data-toggle="dropdown">Dropdown [Menu 1.3] <b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="/go.html?url=#">Action [Menu 1.4]</a></li>
<li><a href="/go.html?url=#">Another action [Menu 1.4]</a></li>
<li><a href="/go.html?url=#">Something else here [Menu 1.4]</a></li>
<li class="divider"></li>
<li><a href="/go.html?url=#">Separated link [Menu 1.4]</a></li>
<li class="divider"></li>
<li><a href="/go.html?url=#">One more separated link [Menu 1.4]</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li>
<a href="/go.html?url=#" class="dropdown-toggle" data-toggle="dropdown">Menu 2 <b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="/go.html?url=#">Action [Menu 2.1]</a></li>
<li><a href="/go.html?url=#">Another action [Menu 2.1]</a></li>
<li><a href="/go.html?url=#">Something else here [Menu 2.1]</a></li>
<li class="divider"></li>
<li><a href="/go.html?url=#">Separated link [Menu 2.1]</a></li>
<li class="divider"></li>
<li><a href="/go.html?url=#">One more separated link [Menu 2.1]</a></li>
<li>
<a href="/go.html?url=#" class="dropdown-toggle" data-toggle="dropdown">Dropdown [Menu 2.1] <b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="/go.html?url=#">Action [Menu 2.2]</a></li>
<li><a href="/go.html?url=#">Another action [Menu 2.2]</a></li>
<li><a href="/go.html?url=#">Something else here [Menu 2.2]</a></li>
<li class="divider"></li>
<li><a href="/go.html?url=#">Separated link [Menu 2.2]</a></li>
<li class="divider"></li>
<li>
<a href="/go.html?url=#" class="dropdown-toggle" data-toggle="dropdown">Dropdown [Menu 2.2] <b class="caret"></b></a>
<ul class="dropdown-menu">
<li>
<a href="/go.html?url=#" class="dropdown-toggle" data-toggle="dropdown">Dropdown [Menu 2.3] <b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="/go.html?url=#">Action [Menu 2.4]</a></li>
<li><a href="/go.html?url=#">Another action [Menu 2.4]</a></li>
<li><a href="/go.html?url=#">Something else here [Menu 2.4]</a></li>
<li class="divider"></li>
<li><a href="/go.html?url=#">Separated link [Menu 2.4]</a></li>
<li class="divider"></li>
<li><a href="/go.html?url=#">One more separated link [Menu 2.4]</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div><!--/.nav-collapse -->
</div>
</div>
<div class="container">
<div class="navbar-template text-center">
<h1>Bootstrap NavBar (Updated: 15 Nov 2016)</h1>
<p class="lead text-info">NavBar with too many childs.</p>
</div>
</div><!-- /.container --><link href="/go.html?url=//ne
