.card {
	width: 100%;
	height: 100%;
	position: absolute;
	-webkit-transform-origin: 50% 50%;
	-moz-transform-origin: 50% 50%;
	-ms-transform-origin: 50% 50%;
	-o-transform-origin: 50% 50%;
	transform-origin: 50% 50%;
	-webkit-transform-style: preserve-3d;	
	-moz-transform-style: preserve-3d;
	-ms-transform-style: preserve-3d;
	-o-transform-style: preserve-3d;
	transform-style: preserve-3d;
	-webkit-transition: -webkit-transform 1s;
	-moz-transition: -moz-transform 1s;
	-ms-transition: -ms-transform 1s;
	-o-transition: -o-transform 1s;
	transition: transform 1s;
}
.card div {
	display: block;
	width: 100%;
	height: 100%;
	position: absolute;
	-webkit-backface-visibility: hidden;
	-moz-backface-visibility: hidden;
	-ms-backface-visibility: hidden;
	-o-backface-visibility: hidden;
	backface-visibility: hidden;
}
.card .front {
	z-index: 2;
	-webkit-transform: rotateY(0deg);
	-moz-transform: rotateY(0deg);
	-ms-transform: rotateY(0deg);
	-o-transform: rotateY(0deg);
	transform: rotateY(0deg);
}
.card .back {
	z-index: 1;
	-webkit-transform: rotateY(180deg);
	-moz-transform: rotateY(180deg);
	-ms-transform: rotateY(180deg);
	-o-transform: rotateY(180deg);
	transform: rotateY(180deg);
}
.card.flipped {
	-webkit-transform: rotateY(180deg);
	-moz-transform: rotateY(180deg);
	-ms-transform: rotateY(180deg);
	-o-transform: rotateY(180deg);
	transform: rotateY(180deg);
}