<!doctype html>
<html >
<head>
<meta charset="utf-8">
<link rel="stylesheet" type="text/css" href="css/bootstrap.css"/>
</head>
<body>
<div class="container">
<div class="row text-center" style="height:40px;border:1px solid #000000;">导航栏</div>
<div class="row text-center" style="height:40px;border:1px solid #000000;">广告区域</div>
<div class="row">
<div class="col-md-6 text-left" style="height:40px;border:1px solid #000000;">左边导航</div>
<div class="col-md-6 text-right" style="height:40px;border:1px solid #000000;">右边导航</div>
</div>
</div>
</div>
</body>
</html>
