.navbar-toggler {
  display: none !important;
}
@media (max-width: 992px) {
  header > nav, header > nav .collapse, header > nav .dropdown-menu, header > nav .navbar-brand {
    position: static !important;
    height: auto !important;
  }
  header > nav * {
    display: block !important;
  }
  .nav-item {
     border: 0 !important;
  }
}