.photos-list a {
	width: calc(25% - 20px);
	margin: 10px;
	display: inline-block;
	padding-top: calc(25% - 20px);
	position: relative;
	overflow: hidden;
}
.photos-list a img {
	position: absolute;
	height: 100%;
	top: 50%;
	left: 50%;
	transform: translate(-50%,-50%);
	max-width: none;
}

.photos-list a img.height {
	width: 100%;
	height: auto;
}
.photos-list {
	margin: 0 -10px;
}

.photos-list a {
	position: relative;
}
.photos-list a:after {
	content: '';
	position: absolute;
	left: 0;
	top: 0;
	right: 0;
	bottom: 0;
	opacity: 0.3;
	z-index: 2;

}
.photos-list a:hover:after {
	background: #ffc627;
}
@media (max-width: 768px){
	.photos-list a {
		width: calc(50% - 20px);
		padding-top: calc(50% - 20px);
	}
}