#global {
	position:absolute;
	left: 50%;
	top: 0%;
	width: 980px;
	height: 472px;
	margin-top: 10px; /* moitié de la hauteur */
	margin-left: -490px;
	text-align: center;
	background-repeat: no-repeat;
	z-index: 2;
	
	visibility: visible;
	bottom: 0px;
}