body{
	margin:0px;
	padding:0px;	
}

#solid{width:100%;height:900px;clear:both;position:relative;}
#solid .solid0,#solid .solid1,#solid .solid2{position:absolute;left:0px;top:0px;width:100%;	height:900px;}
#solid ul{margin:0px;padding:0px;list-style:none;}
#solid ul li{position:absolute;	top:0px;width:100%;	height:900px;display:none;cursor:pointer;}
#solid ul li a{width: 100%;height:900px;display: block;}
#solid #btt{width:100%;height:55px;margin:830px 0 0;position:absolute;}
#solid #btt span{
	position:absolute;
	top:15px;
	left:45%;
	display:block;
	width:30px;
	height:8px;
	margin:0 15px;	
	text-align:center;
	background:#3d3d3d;
	z-index:1000;
	cursor:pointer;
	filter:alpha(opacity=70); /*IE滤镜，透明度50%*/
	-moz-opacity:0.7; /*Firefox私有，透明度50%*/
	opacity:0.7;/*其他，透明度50%*
}