@keyframes appear {
  0% {
    opacity: 0;
  }

  100% {
    opacity: 1;
  }
}

@keyframes shake {
  0%, to {
    transform: translateZ(0);
  }

  10%, 30%, 50%, 70%, 90% {
    transform: translate3d(-10px, 0, 0);
  }

  20%, 40%, 60%, 80% {
    transform: translate3d(10px, 0, 0);
  }
}

@keyframes pop {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.1);
  }

  100% {
    transform: scale(1);
  }
}