.thumbnail {
  max-width: 40%;
}

.lightbox {
	display: none;
	position: fixed;
	z-index: 999;
	width: 100%;
	height: 100%;
	text-align: center;
	top: 0;
	left: 0;
	background: black;
}

.lightbox img {
	max-width: 90%;
	max-height: 80%;
	padding-top: 60px;
}

.lightbox:target {
	outline: none;
	display: block;
}

h4 {
	text-color: white;
}

@media (max-width:765px) {
	.thumbnail {
		max-width: 95%;
	}
	.lightbox img {
		margin-top: 50%;
	}
}