.rotateInDownLeft {
  -webkit-animation-name: rotateInDownLeft;
  animation-name: rotateInDownLeft;
}

@include keyframes(rotateInDownLeft) {
  0% {
    -webkit-transform-origin: left bottom;
    transform-origin: left bottom;
    -webkit-transform: rotate3d(0, 0, 1, -45deg);
    transform: rotate3d(0, 0, 1, -45deg);
    opacity: 0;
  }

  100% {
    -webkit-transform-origin: left bottom;
    transform-origin: left bottom;
    -webkit-transform: none;
    transform: none;
    opacity: 1;
  }
}