ionic-framework/scss/ionic/_bar.scss

.bar {
  position: fixed;
  left: 0;
  right: 0;
  z-index: 10;

  display: -webkit-box;
  display: box;

  width: 100%;
  height: $bar-height;
  padding: $bar-padding-portrait;
  box-sizing: border-box;

  background-color: $bar-bg;
  border-style: solid;
  border-width: 0;

  @include user-select(none);

  &.bar-header {
    border-bottom-width: 1px;
  }
  &.bar-footer {
    border-top-width: 1px;
  }

  &.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);
  }

  //
  //Disabled temporarily because it's annoying for testing.
  //@media screen and (orientation : landscape) {
  //padding: $barPaddingLandscape;
  //}

  // Title inside of a bar is centered
  .title {
    position: absolute;
    z-index: 0;

    top: 0;
    left: 0;
    right: 0;

    line-height: $bar-height;

    margin: 0;
    //padding: $barPaddingVertical 0px;

    min-width: 30px;

    // Go into ellipsis if too small
    text-overflow: ellipsis;

    text-align: center;
    white-space: nowrap;
    font-size: $bar-title-font-size;
  }

  .title a {
    color: inherit;
  }

  .button {
    @include box-flex(0);
    background-color: transparent;
    line-height: $bar-button-line-height;
    font-size: 12px;
    padding: 4px 12px;
    z-index: 1;
  }

  .button-bar {
    line-height: $bar-button-bar-line-height;
  }

  .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;
  }

}

// Default styles for buttons inside of styled bars

.bar-default {
  .button {
    @include button-style($button-default-bg, $buttonDefaultBorder, $gray-dark);
  }
}

.bar-secondary {
  .button {
    @include button-style($button-secondary-bg, $button-secondary-border, $gray-dark);
  }
}

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

.bar .button-icon {
  background-color: transparent;
  border: 1px solid transparent;
}

// Header at top
.bar-header {
  top: 0;
}

// Footer at bottom
.bar-footer {
  bottom: 0;
}

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

.bar-header-secondary {
  top: $bar-height;
  display: block;
}
.bar-footer-secondary {
  bottom: $bar-height;
  display: block;
}