#focus1 {width:800px; height:513px; overflow:hidden; position:relative;}
#focus1 ul {height:513px; position:absolute;}
#focus1 ul li {float:left; width:800px; height:513px; overflow:hidden; position:relative; background:#000;}
#focus1 ul li div {position:absolute; overflow:hidden;}
#focus1 .preNext {width:45px; height:100px; position:absolute; top:168px; background:url(../img/sprite.png) no-repeat 0 0; cursor:pointer;}
#focus1 .pre {left:30px;}
#focus1 .next {right:30px; background-position:right top;}

#focus2 {width:800px; height:513px; overflow:hidden; position:relative;}
#focus2 ul {height:513px; position:absolute;}
#focus2 ul li {float:left; width:800px; height:513px; overflow:hidden; position:relative; background:#000;}
#focus2 ul li div {position:absolute; overflow:hidden;}
#focus2 .preNext {width:45px; height:100px; position:absolute; top:168px; background:url(../img/sprite.png) no-repeat 0 0; cursor:pointer;}
#focus2 .pre {left:30px;}
#focus2 .next {right:30px; background-position:right top;}