.a-flip-bottom {
  @include keyframes(flipBottom) {
    0% {
      transform: translateY(100px);
      opacity: 0;
    }

    70% {
      transform: translateY(30px);
      opacity: 1;
    }

    100% {
      transform: translateY(0);
    }
  }

  @include animate(flipBottom $flip-timing ease-out 1);
}