.tupian {
	width: 760px;
	margin: 30px auto ;
}

.slider {
	width: 750px;
	height: 750px;
	overflow: scroll;
}

.slider ul {
	position:relative;
	clear:both;
	list-style: none;
	padding:0;
	margin:0;
}

.slider li {
	float: left;
	height:750px;
}

.slider li img {
	width: 750px;
}

.grid-nav{
	width: 100%;
}
h3{
	padding:5px;
	clear:both;
}

.grid-nav ul{
	clear:both;
}

.grid-nav-layer li{
	list-style: none;
	margin:1px;	
	float:left;
	cursor: pointer;
	padding:6px;
	border: 2px solid #a2a2a2;
}

.grid-nav-layer li img{
	width:80px;
	height:80px;
}

.grid-active{
	background-color: #c4c2c3;
}