@keyframes box-ani {
	from {
		transform: rotateX(-10deg) rotateY(0deg);
	}

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

body {
	background-color: black;
}

/* #box相当于id="box" */
#box {
	/* 设置边框 */

	height: 250px;
	width: 200px;
	/* 固定定位，以浏览器为标准进行定位 */
	position: fixed;
	left: calc(50% - 100px);
	top: calc(50% - 125px);
	/* 把盒子变成一个3D的盒子 */
	transform-style: preserve-3d;
	

	
	transform: rotateX(-10deg);
	
	/* 使用刚刚定义好的动画,动画的名称 */
	animation-name: box-ani;
	/* 动画执行一次的时间 */
	animation-duration: 20s;
	/* 动画执行的次数，infinite代表无穷 */
	animation-iteration-count: infinite;
	/* 动画匀速执行 */
	animation-timing-function: linear;

}

/* id="box"下面的所有img标签 */
#box>img {
	width: 100%;
	height: 100%;
	/* 绝对定位，以父级为标准进行定位 */
	position: absolute;
	left: 0px;
	top: 0px;
	/* 添加阴影  */
	box-shadow: 0px 0px 20px 10px white;
	-webkit-box-reflect: below 0px -webkit-linear-gradient(bottom, rgba(255,255,255,0.3) 0%, transparent 40%, transparent 100%);
}




#box>img:nth-child(1) {
	transform: rotateY(30deg) translateZ(600px);
}

#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);
}