@mixin absoluteFill {
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    position: absolute;
}

@mixin flexFix {
    display: flex;
    flex-basis: 0px;
    min-width: 0;
    min-height: 0;
}

@mixin baseMixin {

    /*
        base classes
    */
    .flexlayout {
        &__layout {
            @include absoluteFill;
            display: flex;
            // overflow: hidden;
            background-color: var(--fl-color-background);

            &_metrics {
                position: absolute;
                top: -30000px; // offscreen
            } 

            &_overlay {
                @include absoluteFill;
                z-index: 1000;
            }

            &_tab_stamps {
                position: absolute;
                top: -10000px; // offscreen
                z-index: 100;
                display: flex;
                flex-direction: column;
                align-items: flex-start;
            }

            &_moveables_home {
                visibility: hidden;
                position: absolute;
                width: 100px; // size is needed to tabs have something to draw into
                height: 100px;
                top: -20000px; // offscreen
            }

            &_main {
                @include flexFix;
                flex-grow: 1;
                position: relative;
            }
        }

        &__layout_border_container {
            @include flexFix;
            flex-grow: 1;
        }

        &__layout_border_container_inner {
            @include flexFix;
            flex-grow: 1;
            position: relative; // anchor for overlay border panels
        }

        &__splitter {
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: var(--fl-color-splitter);
            touch-action: none;
            z-index: 10;
            position: relative;

            &:focus-visible {
                outline: 2px solid var(--fl-color-focus);
                outline-offset: -2px;
            }

            &_horz {
                width: var(--fl-splitter-size);
                min-width: var(--fl-splitter-size);

                &::before {
                    content: "";
                    position: absolute;
                    top: 0;
                    bottom: 0;
                    /* Center the hit area over the thin line */
                    left: 50%;
                    width: var(--fl-splitter-active-size);
                    transform: translateX(-50%);
                    z-index: 1;
                }
            }

            &_vert {
                height: var(--fl-splitter-size);
                min-height: var(--fl-splitter-size);

                &::before {
                    content: "";
                    position: absolute;
                    left: 0;
                    right: 0;
                    /* Center the hit area over the thin line */
                    top: 50%;
                    height: var(--fl-splitter-active-size);
                    transform: translateY(-50%);
                    z-index: 1;
                }
            }

            @media (hover: hover) {
                &:hover {
                    background-color: var(--fl-color-splitter-hover);
                    transition: background-color ease-in .1s;
                    transition-delay: 0.05s;
                    border-radius: 5px;
                }
            }

            &_border {}

            &_drag {
                position: absolute;
                display: flex;
                align-items: center;
                justify-content: center;
                z-index: 1000;
                border-radius: 5px;
                background-color: var(--fl-color-splitter-drag);
            }

            &_handle {
                background-color: var(--fl-color-splitter-handle);
                border-radius: 3px;
                visibility: var(--fl-splitter-handle-visibility);

                &_horz {
                    width: 3px;
                    height: 30px;
                }

                &_vert {
                    width: 30px;
                    height: 3px;
                }
            }

        }

        &__outline_rect {
            position: absolute;
            pointer-events: none;
            box-sizing: border-box;
            border: 2px solid var(--fl-color-drag1);
            background: var(--fl-color-drag1-background);
            border-radius: 5px;
            z-index: 1000;

            &_edge {
                pointer-events: none;
                border: 2px solid var(--fl-color-drag2);
                background: var(--fl-color-drag2-background);
                border-radius: 5px;
                z-index: 1000;
                box-sizing: border-box;
            }
        }

        &__edge_rect {
            position: absolute;
            z-index: 1000;
            background-color: var(--fl-color-edge-marker);
            pointer-events: none;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        &__drag_rect {
            color: var(--fl-color-drag-rect);
            background-color: var(--fl-color-drag-rect-background);
            border: 2px solid var(--fl-color-drag-rect-border);
            border-radius: 5px;
            box-sizing: border-box;
            // text-align: center;

            display: flex;
            justify-content: center;
            flex-direction: column;
            overflow: hidden;
            padding: 0.3em .8em;
            word-wrap: break-word;
            font-size: var(--fl-font-size);
            font-family: var(--fl-font-family);
        }

        &__row {
            @include flexFix;
            position: relative;
            box-sizing: border-box;
            overflow: hidden;
        }

        &__tabset {
            display: flex;
            flex-direction: column;
            position: relative;
            background-color: var(--fl-color-tabset-background);
            box-sizing: border-box;
            font-family: var(--fl-font-family);
            overflow: hidden;
            flex-grow: 1;

            &_container {
                @include flexFix;
                flex-direction: column;
                overflow: hidden;
                flex-grow: 1;
            }

            &_tab_divider {
                width: 4px;
            }

            &_content {
                @include flexFix;
                flex-grow: 1;
                box-sizing: border-box;
                position: relative;
            }

            &_leading {
                display: flex;
            }

            &_tabbar {
                &_outer {
                    // tabset tabbar outer
                    box-sizing: border-box;
                    background-color: var(--fl-color-tabset-background);
                    overflow: hidden;
                    display: flex;
                    align-items: center;
                    min-height: 1.5em;
                    font-size: var(--fl-font-size);
                    font-weight: var(--fl-font-weight);
                }

                &_outer_top {
                    padding: 0px 2px 0px 2px;
                    border-bottom: 1px solid var(--fl-color-tabset-divider-line);
                }

                &_outer_bottom {
                    padding: 0px 2px 0px 2px;
                    border-top: 1px solid var(--fl-color-tabset-divider-line);
                }

                &_inner {
                    // tabset tabbar inner
                    position: relative;
                    box-sizing: border-box;
                    display: flex;
                    flex-grow: 1;
                    scrollbar-width: none; // firefox

                    &::-webkit-scrollbar {
                        display: none;
                    }

                    &_tab_container {
                        position: relative;
                        display: flex;
                        padding-left: 4px;
                        padding-right: 4px;
                        box-sizing: border-box;
                        white-space: nowrap;
                        align-items: center;

                        &_top {
                            border-top: 2px solid transparent;
                        }

                        &_bottom {
                            border-bottom: 2px solid transparent;
                        }
                    }
                }
            }

            &-selected {
                background-color: var(--fl-color-tabset-background-selected);
            }

            &-maximized {
                background-color: var(--fl-color-tabset-background-maximized);
            }
        }

        &__tab_button_stamp {
            display: inline-flex;
            align-items: center;
            gap: 0.3em;
            white-space: nowrap;
            box-sizing: border-box;
        }

        &__group_pill {
            display: inline-flex;
            align-items: center;
            gap: 0.35em;
            padding: 2px 8px 2px 8px;
            margin: 2px 2px;
            border-radius: var(--fl-tabgroup-pill-radius) 0 0 var(--fl-tabgroup-pill-radius); // flat right when expanded (left cap of split pill)
            border: 1px solid var(--fl-color-tabset-divider-line);
            border-right: none;
            background-color: var(--fl-color-base);
            color: var(--fl-color-tabgroup-pill-text);
            cursor: pointer;
            user-select: none;
            white-space: nowrap;
            box-sizing: border-box;

            &:focus-visible {
                outline: 2px solid var(--fl-color-focus);
            }

            // collapsed: fully rounded pill (no end marker)
            &_collapsed {
                border-radius: var(--fl-tabgroup-pill-radius);
                border-right: 1px solid var(--fl-color-tabset-divider-line);
            }

            // underline group type: the pill is always fully rounded (the grouped tabs
            // carry the color as an underline instead of being enclosed by pill caps)
            &_underline {
                border-radius: var(--fl-tabgroup-pill-radius);
                border-right: 1px solid var(--fl-color-tabset-divider-line);
            }

            &_name {
                max-width: 10em;
                overflow: hidden;
                text-overflow: ellipsis;

                // keep the pill's line box (and height) when the group has no name
                &::before {
                    content: "\200B";
                }
            }

            &_count {
                opacity: 0.7;
                font-size: 0.85em;
            }
        }

        &__group_end_marker {
            display: inline-block;
            border-radius: 0 var(--fl-tabgroup-pill-radius) var(--fl-tabgroup-pill-radius) 0; // flat left (right cap of split pill)
            border: 1px solid var(--fl-color-tabset-divider-line);
            border-left: none;
            background-color: var(--fl-color-base);
            padding: 2px 7px 2px 7px;
            margin: 2px 2px;
            cursor: pointer;
            box-sizing: border-box;

            // the marker has no text, so the zero-width space gives it the same line box
            // (and therefore height) as the pill's name, keeping both caps equal
            &::before {
                content: "\200B";
            }
        }

        &__tab_button_grouped {
            // semantic marker only; the split-pill caps provide visual group enclosure
        }

        &__tab_button_grouped_underline {
            // the group color underline is drawn with a pseudo-element under the whole tab button
            // (not a border on the content, which would only span the text width)
            position: relative;

            &::after {
                content: "";
                position: absolute;
                left: 10px;
                right: 10px;
                bottom: 0;
                height: var(--fl-underline_height, 2px);
                border-radius: calc(var(--fl-underline_height, 2px) / 2);
                background-color: var(--flexlayout-group-color, transparent);
                pointer-events: none;
            }
        }

        &__group_rename {
            display: flex;
            gap: 8px;
            align-items: center;

            &_input {
                padding: 3px;
                border-radius: 5px;
                border: 1px solid var(--fl-color-popup-border);
                background-color: var(--fl-color-tab-textbox-background, var(--fl-color-3));
                color: var(--fl-color-tab-textbox, var(--fl-color-text));
            }
        }

        &__group_picker {
            display: flex;
            flex-wrap: wrap;
            gap: 4px;
            padding: 2px 0;
            max-width: 18em;

            &_item {
                border: 1px solid var(--fl-color-popup-border);
                border-radius: 10px;
                padding: 0 8px;
                line-height: 1.6em;
                font-size: 0.9em;
                cursor: pointer;
                background-color: var(--fl-color-base);
                color: var(--fl-color-popup-unselected);

                &:hover {
                    filter: brightness(0.95);
                }
            }
        }

        &__group_color_picker {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 4px;
            padding: 2px 0;
            max-width: 14em;

            &_swatch {
                width: 18px;
                height: 18px;
                border-radius: 50%;
                border: 1px solid var(--fl-color-popup-border);
                cursor: pointer;
                padding: 0;

                &:hover {
                    transform: scale(1.1);
                }
            }

            &_custom {
                display: inline-flex;
                align-items: center;

                input[type="color"] {
                    // width: 22px;
                    // height: 22px;
                    // padding: 0;
                    // border: none;
                    // background: none;
                    cursor: pointer;
                }
            }
        }

        &__tab {
            overflow: hidden;
            box-sizing: border-box;
            background-color: var(--fl-color-tab-content);
            color: var(--fl-color-text);
            // absolute from first mount: the panel must never join the layout's flex flow, else it
            // would squeeze the layout tree during the commit before the positioning pass runs
            position: absolute;

            &_moveable {
                position: relative;
                height: 100%;
                min-width: 1px;
                min-height: 1px;
                overflow: auto;
                box-sizing: border-box;
            }

            &_overlay {
                z-index: 20;
                position: absolute;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background-color: #0000003d;
            }

            &_border_overlay {
                // paint above the main area tab panels when overlaying them (overlay border).
                // Must equal the drag overlay z-index (layout_overlay, 1000): the panel renders
                // after the overlay, so during drags the panel (and any sublayout overlay within
                // it) receives the drag events over its area, routing them to the hosted
                // sublayout exactly as for a default border panel. Popup menus and drag outlines
                // are appended to the root after the panels, so they still paint above
                z-index: 1000;
            }

            &_overlay_raised {
                z-index: 1001; // the popout overlay must cover the overlay border panel
            }

            &_layout_container {
                // @include absoluteFill;
                position:relative;
                height: 100%;
                box-sizing: border-box;
            }

            &_layout_container_user {
                position:relative;
                flex-grow: 1;
                box-sizing: border-box;
            }

            &_button {
                display: flex;
                gap: 0.3em;
                align-items: center;
                box-sizing: border-box;
                padding: 3px 0.5em;
                font-weight: var(--fl-font-weight);

                &:focus-visible {
                    outline: 2px solid var(--fl-color-focus);
                    outline-offset: -2px;
                }

                cursor: pointer;

                &_stretch {
                    background-color: transparent;
                    color: var(--fl-color-tab-selected);
                    width: 100%;
                    padding: 3px 0em;
                    text-wrap: nowrap;
                    display: flex;
                    gap: 0.3em;
                    align-items: center;
                    box-sizing: border-box;
                    cursor: pointer;

                    @media (hover: hover) {
                        &:hover {
                            color: var(--fl-color-tab-selected);
                        }
                    }
                }

                &--selected {
                    background-color: var(--fl-color-tab-selected-background);
                    color: var(--fl-color-tab-selected);
                }

                @media (hover: hover) {
                    &:hover {
                        color: var(--fl-color-tab-selected);
                    }
                }

                &--unselected {
                    background-color: var(--fl-color-tab-unselected-background);
                    color: var(--fl-color-tab-unselected);
                }

                &_top {}

                &_bottom {}

                &_leading {
                    display: flex;
                }

                &_pin {
                    display: flex;
                    // pointer-events: none;
                }

                &_content {
                    display: flex;
                    text-wrap: nowrap;
                }

                &_textbox {
                    border: none;
                    font-family: var(--fl-font-family);
                    font-size: var(--fl-font-size);
                    font-weight: var(--fl-font-weight);
                    color: var(--fl-color-tab-textbox);
                    background-color: var(--fl-color-tab-textbox-background);
                    border: 1px inset var(--fl-color-1);
                    border-radius: 3px;
                    width: 10em;
                }

                &_textbox:focus {
                    outline: 2px solid var(--fl-color-focus);
                    outline-offset: -1px;
                }

                &_trailing {
                    display: flex;
                    visibility: hidden;
                    border-radius: 4px;

                    &:hover {
                        background-color: var(--fl-color-toolbar-button-hover);
                    }
                }

                @media (pointer: coarse) {
                    &_trailing {}
                }

                @media (hover: hover) {
                    &:hover &_trailing {
                        visibility: visible;
                    }
                }

                &--selected &_trailing {
                    visibility: visible;
                }

                &_overflow {
                    display: flex;
                    align-items: center;
                    border: none;
                    color: var(--fl-color-overflow);
                    font-size: inherit;
                    background-color: transparent;
                    width: 2em;
                    overflow: hidden;
                }
            }

            &_toolbar {
                display: flex;
                align-items: center;
                gap: .3em;
                padding-left: .5em;
                padding-right: .3em;

                &_icon {
                    border: none;
                    outline: none;
                    font-size: inherit;
                    margin: 0px;
                    background-color: transparent;
                    padding: 1px;

                    &:focus-visible {
                        outline: 2px solid var(--fl-color-focus);
                        outline-offset: -2px;
                    }
                }

                &_button {
                    border: none;
                    outline: none;
                    font-size: inherit;
                    margin: 0px;
                    background-color: transparent;
                    border-radius: 4px;
                    padding: 1px;

                    &:focus-visible {
                        outline: 2px solid var(--fl-color-focus);
                        outline-offset: -2px;
                    }

                    @media (hover: hover) {
                        &:hover {
                            background-color: var(--fl-color-toolbar-button-hover);
                        }
                    }

                    &-min {}

                    &-max {}

                    &-float {}

                    &-close {}
                }

                &_sticky_buttons_container {
                    display: flex;
                    gap: 0.3em;
                    padding-left: 5px;
                    align-items: center;
                }
            }
        }

        &__border {
            box-sizing: border-box;
            overflow: hidden;
            display: flex;
            font-family: var(--fl-font-family);
            font-size: var(--fl-font-size);
            font-weight: var(--fl-font-weight);
            color: var(--fl-color-border);
            background-color: var(--fl-color-border-background);

            &_tab_contents {
                box-sizing: border-box;
                overflow: hidden;
                background-color: var(--fl-color-border-tab-content);
            }

            // overlay mode: the border panel (host + splitter) overlays the main layout area,
            // anchored to its border's edge, instead of insetting the main layout
            &_tab_overlay {
                position: absolute;
                z-index: 100;

                &_top {
                    top: 0;
                    left: 0;
                    right: 0;
                    flex-direction: column;
                }

                &_bottom {
                    bottom: 0;
                    left: 0;
                    right: 0;
                    flex-direction: column;
                }

                &_left {
                    left: 0;
                    top: 0;
                    bottom: 0;
                    flex-direction: row;
                }

                &_right {
                    right: 0;
                    top: 0;
                    bottom: 0;
                    flex-direction: row;
                }
            }

            &_leading {
                display: flex;
            }

            &_top {
                border-bottom: 1px solid var(--fl-color-border-divider-line);
                align-items: center;
            }

            &_bottom {
                border-top: 1px solid var(--fl-color-border-divider-line);
                align-items: center;
            }

            &_left {
                border-right: 1px solid var(--fl-color-border-divider-line);
                align-content: center;
                flex-direction: column;
            }

            &_right {
                border-left: 1px solid var(--fl-color-border-divider-line);
                align-content: center;
                flex-direction: column;
            }

            &_inner {
                position: relative;
                box-sizing: border-box;
                align-items: center;
                display: flex;
                flex-grow: 1;
                scrollbar-width: none; // firefox

                &::-webkit-scrollbar {
                    display: none;
                }

                &_tab_container {
                    white-space: nowrap;
                    display: flex;
                    align-items: center;
                    padding-left: 2px;
                    padding-right: 2px;
                    box-sizing: border-box;
                    position: absolute;

                    &_right {
                        transform-origin: top left;
                        transform: rotate(90deg);
                    }

                    &_left {
                        flex-direction: row-reverse;
                        transform-origin: top right;
                        transform: rotate(-90deg);
                    }

                    &_left_down {
                        flex-direction: row;
                        transform-origin: top left;
                        transform: rotate(90deg);
                    }
                }
            }

            &_tab_divider {
                width: 4px;
            }

            &_button {
                display: flex;
                gap: 0.3em;
                align-items: center;
                cursor: pointer;
                padding: 3px 0.5em;
                margin: 2px 0px;
                box-sizing: border-box;
                white-space: nowrap;
                font-weight: var(--fl-font-weight);

                &:focus-visible {
                    outline: 2px solid var(--fl-color-focus);
                    outline-offset: -2px;
                }

                &--selected {
                    background-color: var(--fl-color-border-tab-selected-background);
                    color: var(--fl-color-border-tab-selected);
                }

                @media (hover: hover) {
                    &:hover {
                        // background-color: var(--fl-color-border-tab-selected-background);
                        color: var(--fl-color-border-tab-selected);
                    }
                }

                &--unselected {
                    background-color: var(--fl-color-border-tab-unselected-background);
                    color: var(--fl-color-border-tab-unselected);
                }

                &_leading {
                    display: flex;
                }

                &_content {
                    display: flex;
                }

                &_trailing {
                    display: flex;
                    border-radius: 4px;
                    visibility: hidden;

                    &:hover {}
                }

                @media (pointer: coarse) {
                    &_trailing {}
                }

                @media (hover: hover) {
                    &:hover &_trailing {
                        visibility: visible;
                    }
                }

                &--selected &_trailing {
                    visibility: visible;
                }
            }

            &_toolbar {
                display: flex;
                gap: .3em;
                align-items: center;

                &_left,
                &_right {
                    flex-direction: column;
                    padding-top: .5em;
                    padding-bottom: .3em;
                }

                &_top,
                &_bottom {
                    padding-left: .5em;
                    padding-right: .3em;
                }

                &_button {
                    border: none;
                    outline: none;
                    font-size: inherit;
                    background-color: transparent;
                    border-radius: 4px;
                    padding: 1px;

                    &:focus-visible {
                        outline: 2px solid var(--fl-color-focus);
                        outline-offset: -2px;
                    }

                    @media (hover: hover) {
                        &:hover {
                            background-color: var(--fl-color-toolbar-button-hover);
                        }
                    }

                    &-float {}

                    &_overflow {
                        display: flex;
                        align-items: center;
                        border: none;
                        color: var(--fl-color-overflow);
                        font-size: inherit;
                        background-color: transparent;
                        width: 1.5em;
                    }

                    &_overflow_top,
                    &_overflow_bottom {}

                    &_overflow_right,
                    &_overflow_left {}
                }
            }
        }

        &__popup_menu {
            font-size: var(--fl-font-size);
            font-family: var(--fl-font-family);
            font-weight: var(--fl-font-weight);
            &_item {

                padding: 2px 0.5em;
                white-space: nowrap;
                cursor: pointer;
                border-radius: 2px;

                &.flexlayout__popup_menu_item_grouped {
                    border-left: 5px solid var(--flexlayout-group-color, var(--fl-color-tabgroup-default));
                    padding-left: calc(0.5em - 5px);
                    border-radius: 0 !important;
                }

                &:focus-visible {
                    outline: 2px solid var(--fl-color-focus);
                    outline-offset: -2px;
                }

                &--selected {
                    font-weight: 500;
                    background-color: var(--fl-color-tab-selected-background);
                    color: var(--fl-color-tab-selected);
                }

                &--disabled {
                    opacity: 0.4;
                    cursor: default;
                    pointer-events: none;
                }
            }

            @media (hover: hover) {
                &_item:hover {
                    background-color: var(--fl-color-6);
                }
            }

            &_divider {
                height: 1px;
                margin: 4px 2px;
                background-color: var(--fl-color-popup-border);
            }

            &_container {
                box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.15);
                border: 1px solid var(--fl-color-popup-border);
                color: var(--fl-color-popup-unselected);
                background: var(--fl-color-popup-unselected-background);
                border-radius: 3px;
                position: absolute;
                z-index: 3000;
                max-height: 50%;
                min-width: 100px;
                overflow: auto;
                padding: 2px;
            }
        }

        &__float_window {
            box-sizing: border-box;
            background-color: var(--fl-color-tabset-background);
            border-radius: 5px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
            display: flex;
            flex-direction: column;
            overflow: hidden;
            z-index: 2000;

            &_header {
                display: flex;
                align-items: center;
                padding: 5px 5px;
                background-color: var(--fl-color-float-window-header-background);
                border-bottom: 1px solid var(--fl-color-tabset-divider-line);
                cursor: move;
                user-select: none;
                font-family: var(--fl-font-family);
                font-size: .8em;
                min-height: 15px;

                &_title {
                    overflow: hidden;
                    text-overflow: ellipsis;
                    white-space: nowrap;
                }
            }

            &_drag_handle {
                display: flex;
                align-items: center;
                padding: 0 4px;
                opacity: .7;
                cursor: grab;

                &:hover {
                    opacity: 1;
                }

                &:active {
                    cursor: grabbing;
                }
            }

            &_button {
                display: flex;
                align-items: center;
                padding: 0 4px;
                margin: 0;
                border: none;
                background: none;
                opacity: .7;
                cursor: pointer;

                &:hover {
                    opacity: 1;
                }
            }

            &_content {
                position: relative;
                overflow: auto;
                flex-grow: 1;
                display: flex;
                flex-direction: column;
                min-height: 0;
                min-width: 0;
                margin: 5px;
            }
        }

        &__floating_window {
            _body {
                height: 100%;
            }

            &_content {
                @include absoluteFill;
            }
        }

        &__error_boundary_container {
            @include absoluteFill;
            display: flex;
            justify-content: center;
        }

        &__error_boundary_content {
            display: flex;
            align-items: center;
        }

        // This class is used to measure the size for the border bars,
        // only the height is used, the padding should match the vertical spacing (padding & margins)
        // that have been used in the above classes

        &__border_sizer {
            position: absolute;
            padding-top: 6px;
            padding-bottom: 5px;
            font-size: var(--fl-font-size);
            font-family: var(--fl-font-family);
            font-weight: var(--fl-font-weight);
        }

        &__mini_scrollbar {
            position: absolute;
            background-color: var(--fl-color-mini-scroll-indicator);
            border-radius: 5px;
            width: var(--fl-size-mini-scroll-indicator);
            height: var(--fl-size-mini-scroll-indicator);
            visibility: hidden;
            opacity: 0;
            transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
        }

        &__mini_scrollbar:hover {
            background-color: var(--fl-color-mini-scroll-indicator-hovered);
            transition: background-color 0.3s ease-in-out;
        }

        &__mini_scrollbar_container {
            position: relative;
            display: flex;
            flex-grow: 1;
            overflow: hidden;

            @media (hover: hover) {
                &:hover .flexlayout__mini_scrollbar {
                    opacity: 1;
                    visibility: visible;
                }
            }
        }
    }

    /* ======================== End of Base Classes =========================== */

}