.#{$prefix}grid-group-column {
  @if $grid-group-column-background-gradient == null {
    background-color: $grid-group-column-background-color;
  } @else{
    @include background-gradient($grid-group-column-background-color, $grid-group-column-background-gradient);
  }
  cursor: $grid-group-column-cursor;
  margin: $grid-group-column-outside-margin;

  .#{$prefix}grid-group-column-btn {
    width: 16px;
    height: 16px;
    float: left;
  }

  .#{$prefix}column-header-sort-ASC,
  .#{$prefix}column-header-sort-DESC {
    background-color: transparent !important;
  }
}
.#{$prefix}grid-group-column.#{$prefix}focus {
  .#{$prefix}grid-group-column-inner {
    border: $grid-column-header-focus-border-width $grid-column-header-focus-border-style $grid-column-header-focus-border-color;
  }
}

.#{$prefix}grid-group-column-over {
  @include background-gradient($grid-header-over-background-color, $grid-header-over-background-gradient);
}

.#{$prefix}grid-group-column-inner {
  padding: $grid-group-column-padding;
  border: $grid-group-column-border;
  margin: $grid-group-column-margin;
  font: $grid-group-column-font;
}

.#{$prefix}grid-group-column-text {
}

.#{$prefix}grid-group-column-btn-image {
  padding: $grid-group-column-btn-image-padding;
  background-position: right center;
  background-repeat: no-repeat;
}

.#{$prefix}grid-group-column-btn-customize {
  @if $enable-font-icons and ($grid-group-column-btn-customize-glyph != null) {
    @include font-icon(
            $glyph: $grid-group-column-btn-customize-glyph,
            $color: $grid-group-glyph-color,
            $line-height: null,
            $style-pseudo: true
    );
  } @else {
    background: theme-background-image('grid/gear-small') no-repeat left center;
  }
}

.#{$prefix}grid-group-column-btn-sort-asc {
  @if $enable-font-icons and ($grid-group-column-btn-sort-asc-glyph != null) {
    @include font-icon(
            $glyph: $grid-group-column-btn-sort-asc-glyph,
            $color: $grid-group-glyph-color,
            $line-height: null,
            $style-pseudo: true
    );
  } @else {
    background: theme-background-image('grid/sort_asc') no-repeat left center;
  }
}

.#{$prefix}grid-group-column-sort-icon-asc {
  @if $enable-font-icons and ($grid-group-column-sort-icon-asc-glyph != null) {
    @include font-icon(
            $glyph: $grid-group-column-sort-icon-asc-glyph,
            $color: $grid-group-glyph-color,
            $line-height: null,
            $style-pseudo: true
    );
  } @else {
    background: theme-background-image('grid/hmenu-asc') no-repeat left center;
  }
}

.#{$prefix}grid-group-column-btn-sort-desc {
  @if $enable-font-icons and ($grid-group-column-btn-sort-desc-glyph != null) {
    @include font-icon(
            $glyph: $grid-group-column-btn-sort-desc-glyph,
            $color: $grid-group-glyph-color,
            $line-height: null,
            $style-pseudo: true
    );
  } @else {
    background: theme-background-image('grid/sort_desc') no-repeat left center;
  }
}

.#{$prefix}grid-group-column-sort-icon-desc {
  @if $enable-font-icons and ($grid-group-column-sort-icon-desc-glyph != null) {
    @include font-icon(
            $glyph: $grid-group-column-sort-icon-desc-glyph,
            $color: $grid-group-glyph-color,
            $line-height: null,
            $style-pseudo: true
    );
  } @else {
    background: theme-background-image('grid/hmenu-desc') no-repeat left center;
  }
}