.rotate {
  animation: spin 1.5s linear infinite;
  -webkit-animation: spin 1.5s linear infinite;
  -moz-animation: spin 1.5s linear infinite;
}

@-moz-keyframes spin {
  100% {
    -moz-transform: rotate(360deg);
  }
}
@-webkit-keyframes spin {
  100% {
    -webkit-transform: rotate(360deg);
  }
}
@keyframes spin {
  100% {
    -webkit-transform: rotate(360deg);
    transform: rotate(360deg);
  }
}