ionic-framework/scss/_tabs.scss

/**
 * Tabs
 * --------------------------------------------------
 * A navigation bar with any number of tab items supported.
 */

.tabs {
  @include display-flex();
  @include flex-direction(horizontal);
  @include justify-content(center);
  @include translate3d(0,0,0);

  @include tab-style($tabs-default-bg, $tabs-default-border, $tabs-default-text);
  @include tab-badge-style($tabs-default-text, $tabs-default-bg);

  position: absolute;
  bottom: 0;

  z-index: $z-index-tabs;

  width: 100%;
  height: $tabs-height;

  border-style: solid;
  border-top-width: 1px;

  background-size: 0;
  line-height: $tabs-height;

  @media (min--moz-device-pixel-ratio: 1.5),
         (-webkit-min-device-pixel-ratio: 1.5),
         (min-device-pixel-ratio: 1.5),
         (min-resolution: 144dpi),
         (min-resolution: 1.5dppx) {
    padding-top: 2px;
    border-top: none !important;
    border-bottom: none !important;
    background-position: top;
    background-size: 100% 1px;
    background-repeat: no-repeat;
  }

}
/* Allow parent element of tabs to define color, or just the tab itself */
.tabs-light > .tabs,
.tabs.tabs-light {
  @include tab-style($tabs-light-bg, $tabs-light-border, $tabs-light-text);
  @include tab-badge-style($tabs-light-text, $tabs-light-bg);
}
.tabs-stable > .tabs,
.tabs.tabs-stable {
  @include tab-style($tabs-stable-bg, $tabs-stable-border, $tabs-stable-text);
  @include tab-badge-style($tabs-stable-text, $tabs-stable-bg);
}
.tabs-positive > .tabs,
.tabs.tabs-positive {
  @include tab-style($tabs-positive-bg, $tabs-positive-border, $tabs-positive-text);
  @include tab-badge-style($tabs-positive-text, $tabs-positive-bg);
}
.tabs-calm > .tabs,
.tabs.tabs-calm {
  @include tab-style($tabs-calm-bg, $tabs-calm-border, $tabs-calm-text);
  @include tab-badge-style($tabs-calm-text, $tabs-calm-bg);
}
.tabs-assertive > .tabs,
.tabs.tabs-assertive {
  @include tab-style($tabs-assertive-bg, $tabs-assertive-border, $tabs-assertive-text);
  @include tab-badge-style($tabs-assertive-text, $tabs-assertive-bg);
}
.tabs-balanced > .tabs,
.tabs.tabs-balanced {
  @include tab-style($tabs-balanced-bg, $tabs-balanced-border, $tabs-balanced-text);
  @include tab-badge-style($tabs-balanced-text, $tabs-balanced-bg);
}
.tabs-energized > .tabs,
.tabs.tabs-energized {
  @include tab-style($tabs-energized-bg, $tabs-energized-border, $tabs-energized-text);
  @include tab-badge-style($tabs-energized-text, $tabs-energized-bg);
}
.tabs-royal > .tabs,
.tabs.tabs-royal {
  @include tab-style($tabs-royal-bg, $tabs-royal-border, $tabs-royal-text);
  @include tab-badge-style($tabs-royal-text, $tabs-royal-bg);
}
.tabs-dark > .tabs,
.tabs.tabs-dark {
  @include tab-style($tabs-dark-bg, $tabs-dark-border, $tabs-dark-text);
  @include tab-badge-style($tabs-dark-text, $tabs-dark-bg);
}

/* Allow parent element to have tabs-top */
.tabs-top > .tabs,
.tabs.tabs-top {
  top: $bar-height;
  padding-top: 0;
  padding-bottom: 2px;
  background-position: bottom;
}

.tab-item {
  @include flex(1);
  display: block;
  overflow: hidden;

  max-width: $tab-item-max-width;
  height: 100%;

  color: inherit;
  text-align: center;
  text-decoration: none;
  text-overflow: ellipsis;
  white-space: nowrap;

  font-weight: 400;
  font-size: $tabs-text-font-size;
  font-family: $font-family-light-sans-serif;

  opacity: 0.7;

  &:hover {
    cursor: pointer;
  }
}

.tabs-item-hide,
.tabs-item-hide > .tabs {
  display: none;
}

.tabs-icon-top .tab-item,
.tabs-icon-bottom .tab-item {
  font-size: $tabs-text-font-size-side-icon;
  line-height: $tabs-text-font-size;
}

.tab-item .icon {
  display: block;
  margin: 0 auto;
  height: $tabs-icon-size;
  font-size: $tabs-icon-size;
}

.tabs-icon-left .tab-item,
.tabs-icon-right .tab-item {
  font-size: $tabs-text-font-size-side-icon;

  .icon {
    display: inline-block;
    vertical-align: top;

    &:before {
    font-size: $tabs-icon-size - 8;
    line-height: $tabs-height;
    }
  }
}

.tabs-icon-left .tab-item .icon {
  padding-right: 3px;
}

.tabs-icon-right .tab-item .icon {
  padding-left: 3px;
}

.tabs-icon-only .icon {
  line-height: inherit;
}

.tab-item.has-badge {
  position: relative;
}

.tab-item .badge {
  position: absolute;
  padding: $tabs-badge-padding;
  top: 4%;
  right: 33%; // fallback
  right: calc(50% - 26px);
  font-size: $tabs-badge-font-size;
  height: auto;
  line-height: $tabs-badge-font-size + 4;
}

/* Navigational tab */

/* Active state for tab */
.tab-item.tab-item-active {
  opacity: 1;

  &.tab-item-light {
    color: $light;
  }
  &.tab-item-stable {
    color: $stable;
  }
  &.tab-item-positive {
    color: $positive;
  }
  &.tab-item-calm {
    color: $calm;
  }
  &.tab-item-assertive {
    color: $assertive;
  }
  &.tab-item-balanced {
    color: $balanced;
  }
  &.tab-item-energized {
    color: $energized;
  }
  &.tab-item-royal {
    color: $royal;
  }
  &.tab-item-dark {
    color: $dark;
  }
}

.item.tabs {
  @include display-flex();
  padding: 0;

  .icon:before {
    position: relative;
  }
}