#horizon        
	{
	text-align: center;
	position: absolute;
	top: 50%;
	left: 0px;
	width: 100%;
	height: 1px;
	overflow: visible;
	display: block
	}

#content    
	{
	width: 850px;
	height: 500px;
	margin-left: -425px;
	position: absolute;
	top: -300px;
	left: 50%;
	visibility: visible
	}