#slider{}
#slider ul, #slider li{margin:0;padding:0;list-style:none;}
#slider img{border:none;}
#slider li{width:980px;height:250px;overflow:hidden;}
#prevBtn, #nextBtn{display:block;width:30px;height:77px;position:absolute;left:-30px;top:71px;}
#nextBtn{left:980px;}
#prevBtn a, #nextBtn a{text-indent:-999em;display:block;width:30px;height:77px;background:url(../images/slider_left.png) no-repeat 0 0;}
#prevBtn a:hover{background:url(../images/slider_left_hover.png) no-repeat 0 0;}
#nextBtn a:hover{background:url(../images/slider_right_hover.png) no-repeat 0 0;}
#nextBtn a{background:url(../images/slider_right.png) no-repeat 0 0;}