.#{$prefix}grid-group-hd {
    border-width: $grid-grouped-header-border-width;
    border-style: $grid-grouped-header-border-style;
    border-color: $grid-grouped-header-border-color;
    padding: $grid-grouped-header-padding;
    background: $grid-grouped-header-background-color;
    cursor: $grid-grouped-header-cursor;
}

.#{$prefix}grid-group-hd-not-collapsible {
    cursor: default; 
}

.#{$prefix}grid-group-hd-collapsible .#{$prefix}grid-group-title {
    padding: $grid-grouped-icon-padding;

    @if $enable-font-icons and ($grid-grouped-title-collapse-glyph != null) {
        @include font-icon(
            $glyph: $grid-grouped-title-collapse-glyph,
            $color: $grid-grouped-title-glyph-color,
            $line-height: null,
            $style-pseudo: true
        );
    } @else {
        background: theme-background-image('grid/group-collapse') no-repeat left center;
    }
}

@if $include-rtl {
    .#{$prefix}rtl.#{$prefix}grid-view .#{$prefix}grid-group-hd-collapsible .#{$prefix}grid-group-title {
        background-position: right center;
        padding: rtl($grid-grouped-icon-padding);
    }
}

.#{$prefix}grid-group-title {
    color: $grid-grouped-title-color;
    font: $grid-grouped-title-font;
}

.#{$prefix}grid-group-hd-collapsed .#{$prefix}grid-group-title {
    @if $enable-font-icons and ($grid-grouped-title-expand-glyph != null) {
        @include font-icon(
            $glyph: $grid-grouped-title-expand-glyph,
            $color: $grid-grouped-title-glyph-color,
            $line-height: null,
            $style-pseudo: true
        );
    } @else {
        background-image: theme-background-image('grid/group-expand');
    }
}

.#{$prefix}group-by-icon {
    @if $enable-font-icons and ($grid-grouped-menu-group-by-glyph != null) {
        @include font-icon($grid-grouped-menu-group-by-glyph, $line-height: $menu-item-icon-size);
        @if $grid-header-menu-glyph-color != $menu-glyph-color {
            color: $grid-header-menu-glyph-color;
        }
    } @else {
        background-image: theme-background-image('grid/group-by', 'png');
    }
}