.nav-primary .nav>.menu-item.menu-item-has-children:hover>a:before {z-index:2;    bottom: -2px;}
.banner .brand img {position:relative;z-index:3;}

@media screen and (min-width:992px) {
    
   .nav-primary .nav>.menu-item.menu-item-has-children:hover>.sub-menu {
    z-index: 1;
    border-top: 30px white solid;
    margin-top: -30px;
    }
    
}