<script src="jquery.1.9.js"></script>
<script src="js/bootstrap.min.js"></script>
<link rel="stylesheet" href="css/bootstrap.min.css">
<link rel="stylesheet" href="css/bootstrap-theme.min.css">
<h2>Files Required</h2>
<h3>1.jquery.js</h3>
<h3>2.bootstrap.min.js</h3>
<h3>3.bootstrap.min.css</h3>
<h3>4.bootstrap-theme.min.css</h3>
<body>
<h3>Grid system </h3>
<p>1.layout </p>
<div class="row">
<div class="col-md-2 col-xs-2">
<p>col-md-2 is for desktop</p>
<p>col-xd-2 is for phone</p>
</div>
<div class="col-md-4 col-xs-4">
<p>col-md-4 is for desktop</p>
<p>col-xd-4 is for phone</p>
</div>
<div class="col-md-6 col-xs-6">
<p>col-md-6 is for desktop</p>
<p>col-xd-6 is for phone</p>
</div>
</div>
<p>2.offset</p>
<div class="row">
<div class="col-md-4">
<p>col-md-4 is for desktop</p>
<p>col-xd-4 is for phone</p>
</div>
<div class="col-md-4 col-offset-4">
<p>col-md-4 is for desktop</p>
<p>col-xd-4 is for phone</p>
</div>
</div>
<p>3.nested row sample</p>
<div class="row">
<div class="col-md-6">1<br/>1</div>
<div class="col-md-6">
<div class="col-md-12">2.1</div>
<div class="col-md-12">2.2</div>
</div>
</div>
<script >
$(document).ready(function(){
$(".row").children("div").css("border","2 solid #fff000");
$(".row-fluid").children("div").css("border","2 solid #fff000");
});
</script>
</body>原文：http://blog.csdn.net/lan_liang/article/details/38986923