<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="Generator" content="EditPlus®">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<title>一列宽度自适应布局</title>
<style type="text/css">
#layout{
background-color:#cccccc;
border:2px solid #333333;
width:80%;
height:300px;
}
</style>
</head>
<body>
<div id="layout">一列宽度自适应布局</div>
</body>
</html>
