.panel {
	margin: 0 auto;
	height: 500px;  
	position: relative;
	-webkit-perspective: 800px;
	-moz-perspective: 800px;
}

.panel .front,
.panel .back {
	text-align: center;
}
	
.panel .front {
	
	position: absolute;
	top: 0;
	z-index: 1000;
	text-align: center;
	-webkit-transform: rotateX(0deg) rotateY(0deg);
	   -moz-transform: rotateX(0deg) rotateY(0deg);
	-webkit-transform-style: preserve-3d;
	   -moz-transform-style: preserve-3d;
	-webkit-backface-visibility: hidden;
	   -moz-backface-visibility: hidden;
	-webkit-transition: all .4s ease-in-out;
	   -moz-transition: all .4s ease-in-out;
		-ms-transition: all .4s ease-in-out;
		 -o-transition: all .4s ease-in-out;
			transition: all .4s ease-in-out;
}

.panel .back {
	 
	position: absolute;
	top: 0;
	z-index: 1000;
	text-align: center;
	-webkit-transform: rotateY(-180deg);
	   -moz-transform: rotateY(-180deg);
	-webkit-transform-style: preserve-3d;
	   -moz-transform-style: preserve-3d;
	-webkit-backface-visibility: hidden;
	   -moz-backface-visibility: hidden;
	-webkit-transition: all .4s ease-in-out;
	   -moz-transition: all .4s ease-in-out;
		-ms-transition: all .4s ease-in-out;
		 -o-transition: all .4s ease-in-out;
			transition: all .4s ease-in-out;
}
.panel.flip .front {
	z-index: 1000;
	-webkit-transform: rotateY(180deg);
	-moz-transform: rotateY(180deg);
}
.panel.flip .back {
	z-index: 1000;
	-webkit-transform: rotateX(0deg) rotateY(0deg);
	-moz-transform: rotateX(0deg) rotateY(0deg);
}