ionic-framework/scss/_bar.scss

// Bar (Headers and Footers)
// -------------------------------

.bar {
  @include user-select(none);
  position: absolute;
  right: 0;
  left: 0;
  z-index: 10;

  display: -webkit-box;
  display: box;
  box-sizing: border-box;
  padding: $bar-padding-portrait;

  width: 100%;
  height: $bar-height;
  border-width: 0;
  border-style: solid;
  border-top: 1px solid transparent;
  border-bottom: 1px solid $bar-default-border-color;

  background-color: $bar-bg;
  background-size: 0;
  @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) {
    border-top: none !important;
    border-bottom: none !important;
    background-image: linear-gradient(0deg, $bar-default-border-color, $bar-default-border-color, 50%, transparent 50%);
    background-position: bottom;
    background-size: 100% 1px;
    background-repeat: no-repeat;
  }

  &.bar-clear {
    border: none;
    background: none;
    color: #fff;
    .button {
      color: #fff;
    }
    .title {
      color: #fff;
    }
  }

  &.bar-default {
    @include bar-style($bar-default-bg, $bar-default-border-color, $gray-dark);
  }

  &.bar-secondary {
    @include bar-style($bar-secondary-bg, $bar-secondary-border-color, $gray-dark);
  }
  &.bar-primary {
    @include bar-style($bar-primary-bg, $bar-primary-border-color, $white);
  }
  &.bar-info {
    @include bar-style($bar-info-bg, $bar-info-border-color, $white);
  }
  &.bar-success {
    @include bar-style($bar-success-bg, $bar-success-border-color, $white);
  }
  &.bar-warning {
    @include bar-style($bar-warning-bg, $bar-warning-border-color, $white);
  }
  &.bar-danger {
    @include bar-style($bar-danger-bg, $bar-danger-border-color, $white);
  }
  &.bar-dark {
    @include bar-style($bar-dark-bg, $bar-dark-border-color, $white);
  }

  // Title inside of a bar is centered
  .title {
    position: absolute;

    top: 0;
    right: 0;
    left: 0;
    z-index: 0;

    margin: 0;

    min-width: 30px;

    text-align: center;

    // Go into ellipsis if too small
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: $bar-title-font-size;

    line-height: $bar-height;
  }

  .title a {
    color: inherit;
  }

  > .button {
    z-index: 1;
    padding: 0 $button-bar-button-padding;
    height: $button-bar-button-height;
    min-width: $button-bar-button-height + $button-bar-button-font-size;
    min-height: $button-bar-button-height - 1;
    font-size: $button-bar-button-font-size;
    line-height: $button-bar-button-height - $button-border-width - 2;

    .icon {
      font-size: $button-bar-button-icon-size;
      line-height: $button-bar-button-height - $button-border-width - 2;
    }
  }

  .button-bar > .button {
    height: $button-bar-button-height;
    min-height: $button-bar-button-height - 1;
    line-height: $button-bar-button-height - 2;
  }

  .button-bar + .button, .button + .button-bar {
    margin-left: 5px;
  }

  // Place the last button in a bar on the right of the bar
  .title + .button:last-child,
  > .button + .button:last-child,
  > .button.pull-right,
  .title + .buttons {
    position: absolute;
    top: 5px;
    right: 5px;
    bottom: 5px;
  }

}

// Default styles for buttons inside of styled bars

.bar-default {
  .button {
    @include button-style($button-default-bg, $button-default-border, $button-default-active-bg, $button-default-active-border, $gray-dark);
    @include button-clear($gray-dark, $bar-title-font-size);
  }
}

.bar-secondary {
  .button {
    @include button-style($button-secondary-bg, $button-secondary-border, $button-secondary-active-bg, $button-secondary-active-border, $gray-dark);
    @include button-clear($gray-dark, $bar-title-font-size);
  }
}

.bar-primary {
  .button {
    @include button-style($button-primary-bg, $button-primary-border, $button-primary-active-bg, $button-primary-active-border, $white);
    @include button-clear($white, $bar-title-font-size);
  }
}
.bar-info {
  .button {
    @include button-style($button-info-bg, $button-info-border, $button-info-active-bg, $button-info-active-border, $white);
    @include button-clear($white, $bar-title-font-size);
  }
}
.bar-success {
  .button {
    @include button-style($button-success-bg, $button-success-border, $button-success-active-bg, $button-success-active-border, $white);
    @include button-clear($white, $bar-title-font-size);
  }
}
.bar-warning {
  .button {
    @include button-style($button-warning-bg, $button-warning-border, $button-warning-active-bg, $button-warning-active-border, $white);
    @include button-clear($white, $bar-title-font-size);
  }
}
.bar-danger {
  .button {
    @include button-style($button-danger-bg, $button-danger-border, $button-danger-active-bg, $button-danger-active-border, $white);
    @include button-clear($white, $bar-title-font-size);
  }
}
.bar-dark {
  // A default style for buttons
  .button {
    @include button-style($button-dark-bg, $button-dark-border, $button-dark-active-bg, $button-dark-active-border, $white);
    @include button-clear($white, $bar-title-font-size);
  }
}

// Header at top
.bar-header {
  top: 0;
  border-top-width: 0;
  border-bottom-width: 1px;
}

// Footer at bottom
.bar-footer {
  bottom: 0;
  border-top-width: 1px;
  border-bottom-width: 0;
  background-position: top;
}

// Don't render padding if the bar is just for tabs
.bar-tabs {
  padding: 0;
}

.bar-subheader {
  top: $bar-height;
  display: block;
}
.bar-subfooter {
  bottom: $bar-height;
  display: block;
}