animate.css/source/fading_exits/fadeOutBottomRight.css

@keyframes fadeOutBottomRight {
  from {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
  to {
    opacity: 0;
    transform: translate3d(100%, 100%, 0);
  }
}

.fadeOutBottomRight {
  animation-name: fadeOutBottomRight;
}