.boop {
  animation: boop 0.6s forwards;
}

@keyframes boop {
  0%,
  100% {
    transform: rotate(0deg);
  }
  25% {
    transform: rotate(10deg);
  }
  50% {
    transform: rotate(-10deg);
  }
  75% {
    transform: rotate(10deg);
  }
}