#middleNav {}
#middleNav  li.dropdown {font-size: 18px;}
@media (min-width: 576px) {
  #middleNav  li.dropdown .navbar-nav .nav-link {padding: .25rem;}
}
.navBigScreen {}
.navBigScreen li.nav-item {font-weight:600;}
.navSmallScreen {display:none;}
@media (max-width: 768px) {
  .navBigScreen {display:none;}
  .navSmallScreen {display:flex;}
}