.a-rotate-flip-down {
  @include keyframes(rotateFlipDown) {
    0% {
      transform-origin: 50%;
    }

    40% {
      transform: rotateX(70deg);
      opacity: 0;
    }

    60% {
      transform: rotateX(70deg);
      opacity: 0;
    }

    100% {
      transform: rotateX(0deg);
      opacity: 1;
    }
  }

  @include show();
  @include animate(rotateFlipDown $rotate-timing linear 1);
}