#overlay{
	background-color: rgba(0,0,0,.5);
	width: 100%;
	height: 100%;
	position: fixed;
	top: 0;
	left: 0;
	z-index: 20;
	text-align: center;
}
#overlay img{
	margin-top: 2%;
	margin-bottom: 2%;
	border: 1px solid silver;
	max-height: 90%;
	max-width: 90%;
	
}