@keyframes hidden-hover {
    from { opacity: 1;}
    to { opacity: 0;}
}

@keyframes visibility-hover {
    from { opacity: 0;}
    to { opacity: 1;}
}

@keyframes marginbot {
    from { padding-top:2vw;}
    to { padding-top:4.5vw; }
}

@keyframes margintop {
    from { padding-top:4.5vw;}
    to { padding-top:2vw; }
}

/*  Reverse */

@keyframes hidden-hover-none {
    from { opacity: 1;}
    to { opacity: 1;}
}

@keyframes visibility-hover-none {
    from { opacity: 1;}
    to { opacity: 1;}
}

@keyframes marginbot-none {
    from { padding-top:2vw;}
    to { padding-top:2vw; }
}

@keyframes margintop-none {
    from { padding-top:2vw;}
    to { padding-top:2vw; }
}