Bootstrap CSS class .nav-tabs

/* _nav.scss:32 */
.nav-tabs {
  border-bottom: $nav-tabs-border-width solid $nav-tabs-border-color;

  .nav-item {
    margin-bottom: -$nav-tabs-border-width;
  }

  .nav-link {
    border: $nav-tabs-border-width solid transparent;
    @include border-top-radius($nav-tabs-border-radius);

    @include hover-focus {
      border-color: $nav-tabs-link-hover-border-color;
    }

    &.disabled {
      color: $nav-link-disabled-color;
      background-color: transparent;
      border-color: transparent;
    }
  }

  .nav-link.active,
  .nav-item.show .nav-link {
    color: $nav-tabs-link-active-color;
    background-color: $nav-tabs-link-active-bg;
    border-color: $nav-tabs-link-active-border-color;
  }

  .dropdown-menu {
    // Make dropdown border overlap tab border
    margin-top: -$nav-tabs-border-width;
    // Remove the top rounded corners here since there is a hard edge above the menu
    @include border-top-radius(0);
  }
}