如果对css-3d部分的基础知识不清楚,请参考http://acgtofe.com/posts/2013/09/css-3d-transform以及http://acgtofe.com/posts/2015/12/xyz-3d-in-css
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   | <div class="view"> 	<div class="box"> 		<div class="one">A</div> 		<div class="two">B</div> 		<div class="three">C</div> 		<div class="four">D</div> 		<div class="five">E</div> 		<div class="six">F</div> 	</div> </div>
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   | <style> .view{ 	margin: 80px auto; 	width: 160px; 	height: 160px; 	 } .box{ 	width: 160px; 	position:relative; 	transform-style: preserve-3d;         		transform-origin: 80px 80px 0;         		transform: rotateX(20deg);
          		animation-name: animation;         		animation-duration: 10s;         		animation-timing-function: ease-in-out;         		animation-iteration-count:infinite; } .box div{ 	position: absolute; 	width: 160px; 	height: 160px; 	background: rgba(255,200,100,0.4); 	line-height: 160px; 	text-align: center; 	font-size: 130px; 	border: 1px solid #000;  }
  .one{ 	transform: translateZ(80px); }  .two{ 	 	transform: rotateX(-90deg) translateZ(80px); } .three { 	 	transform: rotateX(90deg) translateZ(80px); } .four{ 	transform: rotateX(180deg) translateZ(80px); } .five{ 	transform: rotateY(-90deg) translateZ(80px) } .six{ 	transform: rotateY(90deg) translateZ(80px) }
  @-webkit-keyframes animation {     from,to{}     16% { -webkit-transform: rotateY(-90deg);}     33% { -webkit-transform: rotateY(-90deg) rotateZ(135deg);}     50% { -webkit-transform: rotateY(225deg) rotateZ(135deg);}     66% { -webkit-transform: rotateY(135deg) rotateX(135deg);}     83% { -webkit-transform: rotateX(135deg);} } </style>
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