Hi Olga… forget it, I fixed… so on top of your coding, one the last line, I added “!important”, which fixed further the parent menu text is black issue.
Thank you very much !
/* ====== fix main menu bg colour won’t change when on sub-page ====== */
.menu-wrapper .menu li.current-menu-parent {
background-color: #0070a6;
}
.menu-wrapper .menu li.current-menu-parent > a {
color: #fff !important;
}