<!DOCTYPE html>
<html lang="en">
<head>
<title></title>
<meta charset="utf-8" />
<style>
img{
height:auto;
width:auto\9;
width:100%;
}
</style>
</head>
<body>
<img src="indexImages/lunbo/A1_hero_1.jpg" >
</body>
</html>
原文：http://www.cnblogs.com/WanSiyan/p/5935558.html