@keyframes flip-diagonal-2-bck {
    0% {
        transform: translateZ(0) rotate3d(-1, 1, 0, 0deg)
    }
    to {
        transform: translateZ(-260px) rotate3d(-1, 1, 0, -180deg)
    }
}

.GRIMOIRE_CSS_ANIMATION {
  animation-name: flip-diagonal-2-bck;
}
