#cat_170.nav-item {
    background-color: #000000 !important;
}

#cat_170.nav-item .nav-link {
    color: #ffffff !important;
}

.category-menu #cat_170 .children {
    background-color: #333333 !important; /* világosabb fekete */
    border-top-color: #000000 !important;
    right: 0;
    left: unset;
}

.category-menu #cat_170 .children a {
    color: #ffffff !important;
}