.litebox.overlay {
	background: rgba(0, 0, 0, 0.96);
	position: fixed;
	top: 0;
	left: 0;
	height: 100%;
	width: 100%;
	z-index: 10;
	
	display: flex;
	align-items: center;
	justify-content: center;
	
	box-sizing: border-box;
	padding: 1em;
}

.litebox.overlay img {
	flex-shrink: 1;
	max-width: 100%;
	max-height: 100%;
}