/* Add the class .flipping-cta to your button */
@keyframes flip_0adb4fe6 {
  0% { transform: perspective(400px) rotateY(0); }
  100% { transform: perspective(400px) rotateY(360deg); }
}

.flipping-cta {
  animation: flip_0adb4fe6 4s infinite linear;
  transform-style: preserve-3d;
  display: inline-block;
}