HbToolBarExtension {
        content-margins: var(hb-param-margin-gene-popup-list);
        max-rows-portrait: 4;
        max-rows-landscape: 3;
        max-columns-portrait: 1;
        max-columns-landscape: 1;
        max-width:var(hb-param-screen-width);
        max-height:var(hb-param-screen-height);
        min-width:0un;
}