参考回答：
#euro {width: 150px;height: 150px;margin-left: -75px;margin-top: -75px;position: absolute;top: 50%;left: 50%;transform-style: preserve-3d;animation: spin 2.5s linear infinite;}.back {background-image: url("/uploads/160101/backeuro.png");width: 150px;height: 150px;}.middle {background-image: url("/uploads/160101/faceeuro.png");width: 150px;height: 150px;transform: translateZ(1px);position: absolute;top: 0;}.front {background-image: url("/uploads/160101/faceeuro.png");height: 150px;position: absolute;top: 0;transform: translateZ(10px);width: 150px;}@keyframes spin {0% {transform: rotateY(0deg);}100% {transform: rotateY(360deg);}}
