submit-social-housing-lettings-and-sales-data/app/frontend/styles/_primary-navigation.scss

.app-primary-navigation {
  @include govuk-font(19, $weight: bold);
  background-color: govuk-colour("light-grey");
  border-bottom: 1px solid $govuk-border-colour;
}

.govuk-phase-banner + .app-primary-navigation {
  margin-top: -1px;
}

.app-primary-navigation__list {
  @include govuk-clearfix;
  left: govuk-spacing(-3);
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  right: govuk-spacing(-3);
  width: calc(100% + #{govuk-spacing(6)});
}

.app-primary-navigation__item {
  box-sizing: border-box;
  display: block;
  float: left;
  line-height: 50px;
  height: 50px;
  padding: 0 govuk-spacing(3);
  position: relative;
}

.app-primary-navigation__item--current {
  border-bottom: $govuk-border-width-narrow solid $govuk-link-colour;

  &:hover {
    border-bottom-color: $govuk-link-hover-colour;
  }

  &:active {
    border-bottom-color: $govuk-link-active-colour;
  }
}

.app-primary-navigation__item--align-right {
  @include govuk-media-query($from: tablet) {
    float: right;
  }
}

.app-primary-navigation__link {
  @include govuk-link-common;
  @include govuk-link-style-no-visited-state;
  @include govuk-link-style-no-underline;
  @include govuk-typography-weight-bold;

  // Extend the touch area of the link to the list
  &:after {
    bottom: 0;
    content: "";
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
  }
}

.app-primary-navigation__item--current .app-primary-navigation__link:hover {
  text-decoration: none;
}