    .#{$prefix}accordion-layout-ct {
        background-color: $accordion-background-color;
        padding: $accordion-padding;
    }

    .#{$prefix}accordion-hd .#{$prefix}panel-header-text-container {
        color: $accordion-header-color;
        font-weight: $accordion-header-font-weight;
        font-family: $accordion-header-font-family;
        text-transform: $accordion-header-text-transform;
    }

    .#{$prefix}accordion-item {
        margin: $accordion-item-margin;

        .#{$prefix}accordion-hd {
            background: $accordion-header-background-color;
            border-top-color: $panel-header-inner-border-color;
            padding: $accordion-header-padding;
        }

        .#{$prefix}accordion-hd-sibling-expanded {
            border-top-color: $panel-border-color;
        }

        .#{$prefix}accordion-hd-last-collapsed {
            border-bottom-color: $accordion-header-background-color;
        }

        .#{$prefix}accordion-body {
            border-width: $accordion-body-border-width;
        }
    }

    .#{$prefix}accordion-hd {
        .#{$prefix}tool-collapse-top,
        .#{$prefix}tool-collapse-bottom {
            background-position: 0 ($accordion-header-tool-size * -17);
        }

        .#{$prefix}tool-expand-top,
        .#{$prefix}tool-expand-bottom {
            background-position: 0 ($accordion-header-tool-size * -16);
        }

        @if $tool-include-hover-icons {
            .#{$prefix}tool-over {
                .#{$prefix}tool-collapse-top,
                .#{$prefix}tool-collapse-bottom {
                    background-position: (-$accordion-header-tool-size) ($accordion-header-tool-size * -17);
                }

                .#{$prefix}tool-expand-top,
                .#{$prefix}tool-expand-bottom {
                    background-position: (-$accordion-header-tool-size) ($accordion-header-tool-size * -16);
                }
            }
        }

        .#{$prefix}tool-img {
            @if $accordion-tool-background-image != $tool-background-image {
                background-image: theme-background-image($accordion-tool-background-image);
            }
            // EXTJSIV-8846: partially transparent png images do not display correctly
            // in winXP/IE8m when the image element has a transparent background.
            // to fix this, we give the element the same background-color as the header.
            background-color: $accordion-header-background-color;
        }
    }