.banner{height:auto;margin:auto; width:100%;}
.mod-banner{height:auto;margin:0 auto;position:relative; z-index:1;}
#focus_img{height:auto;overflow:hidden;}
#focus_img img{ cursor:pointer;}
#focus_btn{position:absolute;top:170px;left:900px;z-index:9;}
#btn_focus_prev,#btn_focus_next{
	width:30px;
	height:30px;
	position:absolute;
	top:160px;
	text-indent:-99em;
	cursor:pointer;
	visibility: inherit;
}
#btn_focus_prev{ background-position:0px 0px;left:10px;background-image:url(../images/btn-left.png);background-repeat:no-repeat;z-index:999;}
#btn_focus_next{ background-position:0px 0px;right:10px;background-image:url(../images/btn-right.png);background-repeat:no-repeat;z-index:999;}