Bootstrap/less/navs.less

//
// Navs
// --------------------------------------------------


// Base class
// --------------------------------------------------

.nav {
  margin-left: 0;
  margin-bottom: 0;
  padding-left: 0; // Override default ul/ol
  list-style: none;
  .clearfix();

  > li {
    position: relative;
    display: block;

    > a {
      position: relative;
      display: block;
      padding: 10px 15px;
      &:hover,
      &:focus {
        text-decoration: none;
        background-color: @gray-lighter;
      }
    }

    // Disabled state sets text to gray and nukes hover/tab effects
    &.disabled > a {
      color: @gray-light;
    }
    &.disabled > a:hover,
    &.disabled > a:focus {
      color: @gray-light;
      text-decoration: none;
      background-color: transparent;
      cursor: default;
    }

    // Space the headers out when they follow another list item (link)
    + .nav-header {
      margin-top: 9px;
    }
  }

  // Open dropdowns
  &.open > a,
  &.open > a:hover,
  &.open > a:focus {
    color: #fff;
    background-color: @link-color;
    border-color: @link-color;
    .caret {
      border-top-color: #fff;
      border-bottom-color: #fff;
    }
  }

  // Redeclare pull classes because of specificity
  // Todo: consider making these utilities !important to avoid this bullshit
  > .pull-right {
    float: right;
  }

  // Dividers (basically an hr) within the dropdown
  .nav-divider {
    .nav-divider();
  }
}



// Nav variations
// --------------------------------------------------

// Tabs
// -------------------------

// Give the tabs something to sit on
.nav-tabs {
  border-bottom: 1px solid #ddd;
  > li {
    float: left;
    // Make the list-items overlay the bottom border
    margin-bottom: -1px;

    // Actual tabs (as links)
    > a {
      margin-right: 2px;
      line-height: @line-height-base;
      border: 1px solid transparent;
      border-radius: @border-radius-base @border-radius-base 0 0;
      &:hover {
        border-color: @gray-lighter @gray-lighter #ddd;
      }
    }

    // Active state, and it's :hover to override normal :hover
    &.active > a,
    &.active > a:hover,
    &.active > a:focus {
      color: @gray;
      background-color: @body-bg;
      border: 1px solid #ddd;
      border-bottom-color: transparent;
      cursor: default;
    }
  }
  // pulling this in mainly for less shorthand
  &.nav-justified {
    .nav-justified;
    .nav-tabs-justified;
  }
}


// Pills
// -------------------------
.nav-pills {
  > li {
    float: left;

    // Links rendered as pills
    > a {
      border-radius: 5px;
    }
    + li {
      > a {
        margin-left: 2px;
      }
    }

    // Active state
    &.active > a,
    &.active > a:hover,
    &.active > a:focus {
      color: #fff;
      background-color: @component-active-bg;
    }
  }
}


// Stacked pills
.nav-stacked {
  > li {
    float: none;
    + li {
      > a {
        margin-top: 2px;
        margin-left: 0; // no need for this gap between nav items
      }
    }
  }
}

// Justified nav links
// -------------------------

.nav-justified {
  width: 100%;
  > li {
    float: none;
    display: table-cell;
    width: 1%;
    > a {
      text-align: center;
    }
  }
}

// Move borders to anchors instead of bottom of list
.nav-tabs-justified () {
  border-bottom: 0;
  > li > a {
    border-bottom: 1px solid #ddd;

    // Override margin from .nav-tabs
    margin-right: 0;
  }
  > .active > a {
    border-bottom-color: @body-bg;
  }

}



// Nav headers (for dropdowns and lists)
// -------------------------

.nav-header {
  display: block;
  padding: 3px 15px;
  font-size: @font-size-mini;
  font-weight: bold;
  line-height: @line-height-base;
  color: @gray-light;
  text-shadow: 0 1px 0 rgba(255,255,255,.5);
  text-transform: uppercase;
}



// Tabbable tabs
// -------------------------

// Clear any floats
.tabbable {
  .clearfix();
}

// Show/hide tabbable areas
.tab-content > .tab-pane,
.pill-content > .pill-pane {
  display: none;
}
.tab-content > .active,
.pill-content > .active {
  display: block;
}



// Dropdowns
// -------------------------

// Make dropdown carets use link color in navs
.nav .caret {
  border-top-color: @link-color;
  border-bottom-color: @link-color;
}
.nav a:hover .caret {
  border-top-color: @link-hover-color;
  border-bottom-color: @link-hover-color;
}

// Specific dropdowns
.nav-tabs .dropdown-menu {
  // make dropdown border overlap tab border
  margin-top: -1px;
  // Remove the top rounded corners here since there is a hard edge above the menu
  .border-top-radius(0);
}