.all{ width: 480px; height: 300px; position: relative; }
.screen{
	width:480px;
	height:300px;
	overflow:hidden; 
	position:relative;
}
.screen li{ width:480px; height:300px; overflow:hidden; float:left;*position: relative;}
.screen ul{ position:absolute; left:0; top:0px; width:3000px;}
.all ol{ position:absolute; right:10px; bottom:10px; line-height:20px; text-align:center;}
.all ol li{ float: left; width: 12px; height: 12px; background: #fff;  margin-left: 6px; cursor: pointer; font-size: 0px; text-indent:9999px; font-family: Verdana; line-height: 12px; border-radius: 15px;}
.all ol li.current{ background:#468dcc;}