@media only screen and (max-width: 991px) {
  #mega-menu-wrap-menu_principal #mega-menu-menu_principal li.mega-hide-on-mobile, #mega-menu-wrap-menu_principal #mega-menu-menu_principal > li.mega-menu-megamenu > ul.mega-sub-menu > li.mega-hide-on-mobile, #mega-menu-wrap-menu_principal #mega-menu-menu_principal > li.mega-menu-megamenu > ul.mega-sub-menu li.mega-menu-column > ul.mega-sub-menu > li.mega-menu-item.mega-hide-on-mobile {
    display: block !important;
  }
}