.f_banner{ width:100%; height:650px; overflow:hidden; position:relative;font-size:0}
.b-img{ height:500px;  position:absolute; left:0; top:0;}
.b-img a{ display:block; height:750px; float:left;cursor:default;}
.b-list{ height:50px; padding-top:600px; position:relative; margin:0 auto;z-index:1;}
.b-list span{ display:block;cursor:pointer; width:10px; height:10px; border-radius:50%; border:3px solid #ccc; float:left; margin:0 5px; _margin:0 3px;}
.b-list .spcss{border:3px solid #FF0000;}