/* 定义一个动画 */
@keyframes box-ani {
	from {
		transform: rotateX(-20deg) rotateY(0deg);
	}

	to {
		transform: rotateX(-20deg) rotateY(360deg);
	}
}
.i>img {
				transition-property: all;
				transition-delay: 0,5s;
			}
			
			.i>img:nth-child(2) {
				transition-delay: 0.5s;
			}
			
			.i>img:nth-child(3) {
				transition-delay: 1s;
			}
			
			.i>img:nth-child(4) {
				transition-delay: 1.5s;
			}
			
			.i>img:nth-child(5) {
				transition-delay: 2s;
			}
			
			.i>img:nth-child(6) {
				transition-delay: 2.5s;
			}
			
			.i>img:nth-child(7) {
				transition-delay: 3s;
			}
			
			.i>img:nth-child(8) {
				transition-delay: 3.5s;
			}
			
			.i>img:nth-child(9) {
				transition-delay: 4s;
			}
			
			.i>img:nth-child(10) {
				transition-delay: 4.5s;
			}
			
			.i>img:nth-child(11) {
				transition-delay: 5s;
			}
			
			.i>img:nth-child(12) {
				transition-delay: 5.5s;
			}
#button2 {
	height: 30px;
	width: 70px;
	position: fixed;
	left: calc(50% - 105px);
}

#button3 {
	height: 30px;
	width: 70px;
	position: fixed;
	left: calc(50% - 35px);
}

#button1 {
	height: 30px;
	width: 70px;
	position: fixed;
	left: calc(50% + 35px);
}

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;
	animation-play-state: paused;

}

/* 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;
}

#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);
}
#bgm {
			width: 100%;
			display: block;
			margin: auto;
			position: fixed;
			top: 35px;
		}

#lrc-box {
			color: white;
			position: fixed;
			bottom: 0px;
			width: 100%;
			font-size: 48px;
			text-align: center;
		}