/* ʱ´úJava - https://NowJava.com */
body {
  margin:0;
  height:100vh;
  overflow:hidden;
}

.cell {
  -webkit-animation: rotate 10s infinite;
          animation: rotate 10s infinite;
  opacity:0.2;
}
@-webkit-keyframes rotate {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg)
  }
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg)
  }
}
@keyframes rotate {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg)
  }
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg)
  }
}