@keyframes bounce {
  0% {
    transform: translate(-50%, -50%) scale(0.8);
  }
  20% {
    transform: translate(-50%, -50%) scale(1.1);
  }
  40% {
    transform: translate(-50%, -50%) scale(0.9);
  }
  60% {
    transform: translate(-50%, -50%) scale(1.05);
  }
  80% {
    transform: translate(-50%, -50%) scale(0.95);
  }
  100% {
    transform: translate(-50%, -50%) scale(1);
  }
}