.df {	position:absolute; }

.world {position:absolute;
	z-index:0;
	left:0px;
	top:0px;
}

.bibs {position:absolute;
	z-index:1;
	display:none;
}

.op50 {	opacity:.6; }
.sidebar{	z-index:1000; 
		background:none;
		position:absolute;
		padding:0px;
		margin:0px;
}

.as {
	position:absolute;
	padding:0px;
	margin:0px;
	display:none;
	z-index:900;
}

.bs {
	position:absolute;
	padding:0px;
	margin:0px;
	display:none;
	z-index:1;
}

.us {
	position:absolute;
	padding:0px;
	margin:0px;
	cursor:pointer;
	display:none;
	z-index:2;
}