html,body,div,img,h1,h2,h3,h4,h5,h6,p,a,span{
	padding:0;
	margin:0;
}
img{
	border:0;
}
#main{
	position: relative;/*相对定位*/
}
.box{
	padding: 15px 0 0 15px; /*推荐用padding*/
	float: left;
}
.pic{
	padding: 10px;
	border:1px solid #ccc;
	border-radius: 5px;
	box-shadow: 0 0 5px #ccc;
}
.pic img{
	width:165px;  /*等宽不等高*/
	height:auto;
}