:root {
    --intro-bezier: cubic-bezier(.47,1.64,.41,.8);
}

.fallin {
    opacity: 0;
    transform: translateY(-20rem);
    animation: anim_toneutral 0.75s var(--intro-bezier) forwards;
}

.risein {
    opacity: 0;
    transform: translateY(20rem);
    animation: anim_toneutral 0.75s var(--intro-bezier) forwards;
}

.fadein {
    opacity: 0;
    animation: anim_toneutral 0.75s ease-in-out forwards;
}

@keyframes anim_toneutral {
    to {
        opacity: 1;
        transform: translateY(0rem);;
        scale: 1;
    }
}