* {
	margin:0;
	padding:0;
	border:0;
	list-style:none;
}
.b1 {
	width:400px;
	height:480px;
	margin:0 auto;
	margin-top:100px;
	border:1px #7fa2a1 solid;
	position:relative;
}
.b1 ul {
	display:flex;
}
.b1 ul li {
	margin:auto;
}
.b1 ul li img {
	width:50px;
	height:50px;
	display:block;
}
.bian {
	border:2px red solid;
}
.b2 img {
	width:400px;
	height:400px;
	margin-bottom:15px;
	position:relative;
}
.b2 .sm {
	width:150px;
	height:150px;
	background-color:#000;
	opacity:0.5;
	filter:alpha(opacity=50);
	position:absolute;
	top:0;
	left:0;
	display:none;
}
.rig {
	width:400px;
	height:400px;
	border:1px #7fa2a1 solid;
	position:absolute;
	top:0;
	left:400px;
	overflow:hidden;
	display:none;
}
.rig img {
	position:absolute;
	left:0;
	top:0;
}