body {
	background:#0fa;
}
.box {
	position:relative;
	margin:200px auto;
	width:200px;
	height:200px;
	animation:active 6s infinite forwards;
	transform:rotate3d(1,1,-1,-60deg);
	/* 设置使子元素也拥有父元素的3维效果 */
            transform-style:preserve-3d;
}
.item {
	width:200px;
	height:200px;
	position:absolute;
	top:0;
	left:0;
	opacity:.9;
	font-weight:600;
	line-height:200px;
	text-align:center;
	font-size:36px;
	border:1px solid #000;
	background:#fff;
	border-radius:10px;
}
.front {
	transform:translateZ(100px)
}
.back {
	transform:translateZ(-100px) rotateY(180deg)
}
.left {
	transform:translateX(-100px) rotateY(-90deg)
}
.right {
	transform:translateX(100px) rotateY(90deg)
}
.top {
	transform:translateY(-100px) rotateX(90deg)
}
.bottom {
	transform:translateY(100px) rotateX(-90deg)
}
@keyframes active {
	from {
	transform:rotate3d(1,-1,-1,-120deg)
}
20% {
	transform:rotate3d(-1,-1,-1,-180deg)
}
40% {
	transform:rotate3d(-1,-1,1,-240deg)
}
60% {
	transform:rotate3d(-1,1,1,-300deg)
}
80% {
	transform:rotate3d(1,-1,1,-360deg)
}
to {
	transform:rotate3d(-1,1,-1,-60deg)
}
}.dice {
	position:absolute;
	width:20px;
	height:20px;
	border-radius:50%;
	background:#000;
}
.one {
	top:50%;
	left:50%;
	transform:translate(-50%);
}
.two {
	background:red;
	top:90px;
	left:50px;
}
.two:nth-child(2) {
	left:120px;
}
.three {
	top:120px;
	left:50px;
}
.three:nth-child(2) {
	top:120px;
	left:120px;
}
.three:nth-child(3) {
	top:60px;
	left:90px;
}
.four {
	background:red;
	top:120px;
	left:120px;
}
.four:nth-child(2) {
	top:120px;
	left:50px;
}
.four:nth-child(3) {
	top:60px;
	left:50px;
}
.four:nth-child(4) {
	top:60px;
	left:120px;
}
.five {
	top:140px;
	left:140px;
}
.five:nth-child(2) {
	top:140px;
	left:40px;
}
.five:nth-child(3) {
	top:40px;
	left:40px;
}
.five:nth-child(4) {
	top:40px;
	left:140px;
}
.five:nth-child(5) {
	top:90px;
	left:90px;
}
.six {
	top:140px;
	left:140px;
}
.six:nth-child(2) {
	top:140px;
	left:40px;
}
.six:nth-child(3) {
	top:40px;
	left:40px;
}
.six:nth-child(4) {
	top:40px;
	left:140px;
}
.six:nth-child(5) {
	top:40px;
	left:90px;
}
.six:nth-child(6) {
	top:140px;
	left:90px;
}