鼠标移入放大效果

<div class="box">
	<img src="http://www.jq22.com/img/cs/500x500-9.png">
</div>

css

.box{
	width: 200px;
	height:200px;
	overflow: hidden;
}
img{
	width: 100%;
	transition: transform 1.6s;
}
img:hover{
	transform: scale(2.0);
}