@media (max-width: 992px) {
  .lg,
  .nav-lg {
    display: none;
  }

  .sm,
  .nav-sm {
    display: inline;
  }
}

@media (min-width: 992px) {
  .lg,
  .nav-lg {
    display: inline;
  }

  .sm,
  .nav-sm {
    display: none;
  }
}