<div class="spinner"></div>

.spinner {
  width: 60px;
  height: 60px;
  background-color: #67CF22;
 
  margin: 100px auto;
  -webkit-animation: rotateplane 1.2s infinite ease-in-out;
  animation: rotateplane 1.2s infinite ease-in-out;
}
 
@-webkit-keyframes rotateplane {
  0% { -webkit-transform: perspective(120px) }
  50% { -webkit-transform: perspective(120px) rotateY(180deg) }
  100% { -webkit-transform: perspective(120px) rotateY(180deg)  rotateX(180deg) }
}
 
@keyframes rotateplane {
  0% {
    transform: perspective(120px) rotateX(0deg) rotateY(0deg);
    -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg)
  } 50% {
    transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
    -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg)
  } 100% {
    transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
    -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
  }
}