.ani-slideup {
    animation-name: slideup;
    animation-duration: 1.5s;
    animation-play-state: paused;
}
.ani-slidedown {
    animation-name: slidedown;
    animation-duration: 1.5s;
    animation-play-state: paused;
}
@keyframes slideup {
    0% {
        opacity: 0;
    }
    50% {
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: .6;
    }
}
@keyframes slidedown {
    0% {
        transform: translateY(-100vh);
        opacity: 0;
    }
    50% {
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}