.vertical_icons
{
    display: block;
    padding-left: calc(1.5 * var(--sz_button));
}
    .vertical_icons > div
    {
        position: relative;
    }
    .vertical_icons > div:not(:last-child)
    {
        border-bottom: var(--border);
    }
    .vertical_icons > div:before
    {
        content: "";
        display: block;
        position: absolute;
        top: calc(0.5 * var(--sz_button));
        left: calc((-1 * (1.5 * var(--sz_button))) + var(--sz_button_margin));
        height: var(--sz_button);
        width: var(--sz_button);
        background-size: contain;
        background-repeat: no-repeat;
        background-position: center center;
    }