作者/来源：yixinu.com
栏目：运维/编程
日期：2015-11-11 16:21:22
<!DOCTYPE html>
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<html>
<head>
<title>TODO supply a title</title>
<meta charset="UTF-8">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style type="text/css" >
body{
margin: 0rem; padding: 0rem;
}
.header{}
.header div{height: 2.8rem;}
.header .a1{background: #f00; width: 3rem; float: left; }
.header .a4{ margin: 0rem auto;}
.header .b2{background: #00f;}
.header .b3{background: #0f0; width: 3rem; float: right;}
</style>
</head>
<body>
<div class="header" >
<div class="a1" >长沙</div>
<div class="a4" >
<div class="b3" >湘潭</div>
<div class="b2" >株洲</div>
</div>
</div>
</body>
</html>