<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
div{
width: 300px;
height: 300px;
border: #000 solid 1px;
margin: 50px auto;
overflow: hidden;
}
div img{
cursor: pointer;
transition: all 0.6s ease-in;
-webkit-transition: all 0.6s ease-in;
}
div img:hover{
transform: scale(1.4);
}
</style>
</head>
<body>
<div>
<img src="img/focus.png" />
</div>
</body>
</html>
原文：http://www.cnblogs.com/dianzan/p/7456128.html