.container {
	perspective: 1000px;
	background-color:red;
}
	.container:hover .flip, .container.hover .flip {
		transform: rotateY(180deg);
	}
.container, .front, .back {
	width: 320px;
	height: 480px;
}

.flip {
	transition: 500ms;
	transform-style: preserve-3d;

	position: relative;
}
.front, .back {
	backface-visibility: hidden;

	position: absolute;
	top: 0;
	left: 0;
}

.front {
	z-index: 2;
	transform: rotateY(0deg);
}

.back {
	transform: rotateY(180deg);
}
h2 {
 color:white; 
}
.anim {
 color:red;
 animation-name:anim;
 animation-duration:6000ms;
}
@keyframes anim {
  from{color:blue;}
  to{color:red;}
}