.primary-nav__menu-link-inner:after {
  border-top: solid 5px #000 !important;
}

@media (min-width: 1200px) {
  [dir] body:not(.is-always-mobile-nav) .primary-nav__menu--level-2 {
    border-top: solid #000 9px;
  }
  [dir] body:not(.is-always-mobile-nav) .primary-nav__menu--level-2:after {
    border-bottom: solid 10px #000;
  }
}