@keyframes box-ani{
				from{
					transform: rotateX(-5deg) rotateY(0deg);
				}
				to{
					transform: rotateX(-5deg) rotateY(360deg);
				}
			}
			body{
				background-color: white;
			}
			#box{
				width: 250px;
				height: 250px;
				border: 0px solid black;
				position: fixed;
				left: calc(50% - 125px);
				top: calc(50% - 125px);
				transform: rotateX(10deg) rotateY(10deg);
				animation-name: box-ani;
				animation-duration: 18s;
				animation-iteration-count: infinite;
				animation-timing-function: linear;
				animation-play-state: paused;
			}
			#bgm{
				width: 70%;
				display: block;
				margin: auto;
			}
			#lrc-box{
				color: #87CEEB;
				border: 2px solid palegreen;
				position: fixed;
				bottom: 0px;
				width: 100%;
				font-size: 48px;
				text-align: center;
			}