.memory-game {
	font-size: 0;
}
.memory-game-inner {
	margin: 0 auto;
	padding: 0;
	width: 100%;
	text-align: center;
}

.memory-card-container {
	display: inline-block;
	position: relative;
}

.memory-card-container a.front .back, .memory-card-container a.back .front {
	display: none;
}
.memory-card-container a.front .front, .memory-card-container a.back .back {
	display: block;
}

.memory-card-wrapper {
	position: absolute;
	top: 50%;
	left: 50%;
}

.memory-card-container a {
	display: block;
	position: absolute;
	top: 0;
	left: 0;
	padding: 0;
}
.memory-card-container, .memory-card-container * {	
	will-change: transform;
}
.card {
	border-radius: 6px;
	border-width: 2px;
	border-style: solid;
}

.card.front {
	border-color: black;
}
.card.back {	
	border-color: #666;
	background-color: #ddd;
}