@keyframes play {
  0% {
    background-position: 0px 0px;
  }
  100% {
    background-position: -33600px 0px;
  }
}
.shapeshifter {
  animation-duration: 1400ms;
  animation-timing-function: steps(84);
  animation-fill-mode: forwards;
  width: 400px;
  height: 200px;
  background-repeat: no-repeat;
  transform: scale(.9);
  
}
.shapeshifter.play {
  animation-name: play;
}