.banana {
  position: fixed;
  pointer-events: none;

  background-image: url("banana.svg");
  background-size: contain;
  background-repeat: no-repeat;

  animation: fall linear;
  z-index: 99;
}

@keyframes fall {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(120vh);
  }
}