*{padding:0;margin:0;}a{text-decoration:none;cursor:pointer;}.clr{clear:both;overflow:hidden;height:0;width:0;}.relative{position:relative;width:100%;}
#home_banner{
	max-width:1680px;
	margin:0 auto;
}
.maxwidth{
	width:100%;
	margin:0 auto;
}
#big_img{
	height:700px;
	background:no-repeat center;
}

#small_pre,#small_next,#small_imgs{
	height:0px;
	float:left;
}
#small_pre,#small_next{
	width:22px;
	display:block;
}
#small_pre{
	margin-right:17px;
}
#small_next{
	margin-left:17px;
}
#small_pre:hover{
	background-position:-22px center;
}
#small_next:hover{
	background-position:-66px center;
}
#small_imgs{
	width:100%;
	overflow:hidden;
}



#small_imgs .item .active{

}