animate.css/source/bouncing_exits/bounceOut.css

@keyframes bounceOut {
  20% {
    transform: scale3d(0.9, 0.9, 0.9);
  }

  50%,
  55% {
    opacity: 1;
    transform: scale3d(1.1, 1.1, 1.1);
  }

  to {
    opacity: 0;
    transform: scale3d(0.3, 0.3, 0.3);
  }
}

.bounceOut {
  animation-duration: 0.75s;
  animation-name: bounceOut;
}