* {
	margin: 0;
	padding: 0;
}

body {
	background: url(../img/wbg.png);
}


.box {
	width: 320px;
	height: 200px;
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
	margin: auto;
	transform-style: preserve-3d;
	animation: im 20s linear infinite;
}

.box img {
	width: 100%;
	height: 100%;
	position: absolute;
}

@keyframes im{
	0% {
		transform: rotateY(0deg) rotateX(10deg);
	}

	25% {
		transform: rotateY(90deg) rotateX(-10deg);
	}

	50% {
		transform: rotateY(180deg) rotateX(10deg);
	}

	75% {
		transform: rotateY(270deg) rotateX(-10deg);
	}

	100% {
		transform: rotateY(360deg) rotateX(10deg);
	}

}

/*10张图片3d变换*/
.box img:nth-child(1) {
	transform: rotateY(0deg) translateZ(600px);
	backface-visibility: visible;
}

.box img:nth-child(2) {
	transform: rotateY(36deg) translateZ(600px);
	backface-visibility: visible;
}

.box img:nth-child(3) {
	transform: rotateY(72deg) translateZ(600px);
	backface-visibility: visible;
}

.box img:nth-child(4) {
	transform: rotateY(108deg) translateZ(600px);
	backface-visibility: visible;
}

.box img:nth-child(5) {
	transform: rotateY(144deg) translateZ(600px);
	backface-visibility: visible;
}

.box img:nth-child(6) {
	transform: rotateY(180deg) translateZ(600px);
	backface-visibility: visible;
}

.box img:nth-child(7) {
	transform: rotateY(216deg) translateZ(600px);
	backface-visibility:visible;
}

.box img:nth-child(8) {
	transform: rotateY(252deg) translateZ(600px);
	backface-visibility: visible;
}

.box img:nth-child(9) {
	transform: rotateY(288deg) translateZ(600px);
	backface-visibility: visible;
}

.box img:nth-child(10) {
	transform: rotateY(324deg) translateZ(600px);
	backface-visibility: visible;
}