bootstrap 简单响应式布局
<!DOCTYPE html>
<html>
<head>
<title></title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!--<link rel="stylesheet" href="http://getbootstrap.com/docs-assets/css/docs.css">-->
<!--<link type="text/css" rel="stylesheet" href="__CSS__/style.css" media="only screen and (max-width:480px)"/>-->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
</head>
<body>
<!--导航组件-->
<nav class="navbar navbar-inverse">
<!--实现网站居中-->
<div class="container">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<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="#">Project name</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home </a></li>
<li><a href="#">about</a></li>
<li><a href="#">contact</a></li>
</ul>
</ul>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
<div class="container">
<div class="row">
<div class="col-sm-9">
<p class="pull-right visible-xs">
<button class="btn-xs">Toggle</button>
</p>
<!--巨幕。一般用于公司介绍-->
<div class="jumbotron">
<h1>Hello, world!</h1>
<p>This is a simple hero unit, a simple jumbotron-style component for calling extra attention to featured content or information.</p>
</div>
<div class="row">
<!--sm:md一般3:2合适-->
<div class="col-6 col-sm-6 col-md-4">
<h2>head</h2>
<p>This is a simple hero unit, a simple jumbotron-style component for calling extra attention to featured content or informa
</p>
<a type="button" class="btn btn-default">view detail</a>
</div>
<div class="col-6 col-sm-6 col-md-4">
<h2>head</h2>
<p>This is a simple hero unit, a simple jumbotron-style component for calling extra attention to featured content or informa
</p>
<a type="button" class="btn btn-default">view detail</a>
</div>
<div class="col-6 col-sm-6 col-md-4">
<h2>head</h2>
<p>This is a simple hero unit, a simple jumbotron-style component for calling extra attention to featured content or informa
</p>
<a type="button" class="btn btn-default">view detail</a>
</div>
<div class="col-6 col-sm-6 col-md-4">
<h2>head</h2>
<p>This is a simple hero unit, a simple jumbotron-style component for calling extra attention to featured content or informa
</p>
<a type="button" class="btn btn-default">view detail</a>
</div>
<div class="col-6 col-sm-6 col-md-4">
<h2>head</h2>
<p>This is a simple hero unit, a simple jumbotron-style component for calling extra attention to featured content or informa
</p>
<a type="button" class="btn btn-default">view detail</a>
</div>
<div class="col-6 col-sm-6 col-md-4">
<h2>head</h2>
<p>This is a simple hero unit, a simple jumbotron-style component for calling extra attention to featured content or informa
</p>
<a type="button" class="btn btn-default">view detail</a>
</div>
</div>
</div>
<div class="col-sm-3">
<!--ul列表组可以用作导航-->
<ul class="list-group">
<li class="list-group-item">Cras justo odio</li>
<li class="list-group-item">Dapibus ac facilisis in</li>
<li class="list-group-item">Morbi leo risus</li>
<li class="list-group-item">Porta ac consectetur ac</li>
<li class="list-group-item">Vestibulum at eros</li>
</ul>
</div>
</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/jquery@1.12.4/dist/jquery.min.js"></script>
<script type="application/javascript" src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" ></script>
</body>
</html>
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