.container {
	border: 1px solid #CCC;
	margin: 10px;
	perspective: 600px;
    overflow: hidden;
}

.container__sub {
	position: relative;
	width: 100%;
	height: 100%;
	cursor: pointer;
	transform-style: preserve-3d;
	transform-origin: center right;
    transition: transform 0.5s;
}

.container__sub.flip__vertical {
	transform: translateY(0%) rotateX(-180deg);
}

.container__sub.flip__horizontal {
	transform: translateX(-100%) rotateY(180deg);
}

.container__sub__face {
	position: absolute;
	width: 100%;
	height: 100%;
	text-align: center;
	font-weight: bold;
	font-size: 40px;
	backface-visibility: hidden;
}