.zoombox-thumbnails {
	padding: 0;
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	grid-auto-flow: dense;
}
.zoombox-thumbnails a {
	display: grid;
	padding: 8px;
}
.zoombox-thumbnails a > img {
	-o-object-fit: cover;
	   object-fit: cover;
	align-self: stretch;
	justify-self: stretch;
}