/* Clearing */
.clear {
    clear: both;
    height: 0;
    font-size: 1px; /* Verificar validez humana de esto */
    line-height: 0;
}
/* zero margins */
 html, body { margin:0; padding:0; }
 
 /* position:fixed */
#outer {
	width:800px;
	height:400px;
	position:fixed;
	left:50%;
	top:50%;
	margin-left:-400px;
	margin-top:-300px;
	z-index:20;
}
 
 /* certering */
 .middle { height:100%; display:table; margin:0 auto; }
 .#divflash { vertical-align:middle; display:table-cell; }