.hidden {
	display: none !important;
}
.material-shadow {
	box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
	transition: all 0.2s ease-in-out;
	
}
.material-shadow:hover {
	box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23)
}

.container {
	display: none;
	flex-flow: row wrap;
	align-items: center;
	justify-content: center;
	width: calc(100% - 10px);
	padding: 5px;
}
.card {
	position: relative;
	width: 150px;
	height: 150px;
	border: 1px solid grey;
	margin: 10px;
	cursor: pointer;
	background-color: whitesmoke;
	overflow: hidden;
	transition: all 0.125s linear;
}

.void {
	position: relative;
	width: 150px;
	height: 150px;
	margin: 10px;
}

.card img {
	opacity: 0;
	min-width: 100%;
	max-width: 200%;
	min-height: 100%;
	transition: opacity 0.025s linear;
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
}

.flipped {
	transform: rotate3d(0,1,0,180deg);
}