/*定义动画*/
@keyframes box-ani {
	from {
		transform: rotateX(-10deg) rotateY(0deg);
	}

	to {
		transform: rotateX(-10deg) rotateY(360deg);
	}
}

body {
	background-color: blue;
}

#box {
	/*设置一个盒子*/
	border: 0px solid white;
	height: 250px;
	width: 200px;
	position: fixed;
	left: calc(50% - 100px);
	top: calc(50% - 125px);
	transform-style: preserve-3d;
	/*变成3D*/
	transform: rotateX(-10deg);
	animation-name: box-ani;
	animation-duration: 10s;
	animation-iteration-count: infinite;
	/*一直转*/
	animation-timing-function: linear;
	animation-direction: alternate;

}

#box>img {
	width: 100%;
	height: 100%;
	position: absolute;
	/*绝对定位，以父级为标准进行定位*/
	left: 0px;
	top: 0px;
	/*添加阴隐*/
	box-shadow: 0px 0px 20px 10px gold;
	-webkit-box-reflect: below 10px -webkit-gradient(linear, left top, left bottom, from(transparent), to(rgba(250, 250, 250, 0.7)));
}

/*第一张图片*/

/*第一张图片*/
#box>img:nth-child(1) {
	transform: rotateY(30deg) translateZ(600px);
	/*沿着Y轴转30度*/
}

/*第2张图片*/
#box>img:nth-child(2) {
	transform: rotateY(60deg) translateZ(600px);
}

#box>img:nth-child(3) {
	transform: rotateY(90deg) translateZ(600px);
}

#box>img:nth-child(4) {
	transform: rotateY(120deg) translateZ(600px);
}

#box>img:nth-child(5) {
	transform: rotateY(150deg) translateZ(600px);
}

#box>img:nth-child(6) {
	transform: rotateY(180deg) translateZ(600px);
}

#box>img:nth-child(7) {
	transform: rotateY(210deg) translateZ(600px);
}

#box>img:nth-child(8) {
	transform: rotateY(240deg) translateZ(600px);
}

#box>img:nth-child(9) {
	transform: rotateY(270deg) translateZ(600px);
}

#box>img:nth-child(10) {
	transform: rotateY(300deg) translateZ(600px);
}

#box>img:nth-child(11) {
	transform: rotateY(330deg) translateZ(600px);
}

#box>img:nth-child(12) {
	transform: rotateY(360deg) translateZ(600px);
}

#box>img:nth-child(13) {
	transform: rotateX(0deg) rotateY(0px) translateZ(0px);
}