#main_promo{height:460px; width:1920px; margin-left:-960px; position:relative; top:0; left:50%; overflow:hidden; z-index:0; }
.promoWD{    overflow: hidden;   margin:0 auto; position:relative; }
.slide{display:block; float:left; width:1920px;}
.slide img {width:100%;}
#dots{height:13px; position:absolute; bottom:13px; left:46%; z-index:99;}
#dots li{ width:23px; height:13px; float:left; }
#dots li a{width:10px; display:block; height:10px; background-color:#015ea4;}
#dots li.act a{background-color:#fff;}