.admin__menu #menu-advox-top-level > a:before {
    opacity: 0.65;
    content: '';
    font-size: 2.4rem;
    display: block;
    position: relative;
    top: -0.3rem;
    width: 28px;
    height: 28px;
    background: url(../images/advox_logo.svg);
    background-size: 28px 28px;
    margin: 0 auto;
}

.admin__menu #menu-advox-top-level:hover > a:before {
    opacity: 1;
}

.admin__menu #menu-advox-top-level>.submenu>ul>.level-1:only-of-type>.submenu-group-title {
    display: block;
}