#modalOverlay {
	width:100%;
	height:100%;
	z-index:2; /* places the modal overlay between the main page and the modal dialog*/
	background-color:#000;
	opacity:0.5;
	position:fixed;
	top:0;
	left:0;
	display:none;
	margin:0;
	padding:0;
}

#modal_aide h1 {
	text-align:center;
}
.modalCloseButton img {
	border:0;
}

.screen-reader-offscreen {
	position:absolute;
	left:-999px;
	width:1px;
	height:1px;
	top:auto;
}