code: protected void setOverflowVisibleToContent() {
  
          Element tabRoot = m_tabPanel.getElement();
          // set an additional css class for the parent element of the .gwt-TabLayoutPanelTabs element
          List<Element> tabContentDivs = CmsDomUtil.getElementsByClass(
              I_CmsLayoutBundle.INSTANCE.tabbedPanelCss().cmsTabLayoutPanelContent(),
              CmsDomUtil.Tag.div,
              tabRoot);
          tabContentDivs.addAll(
              CmsDomUtil.getElementsByClass("gwt-TabLayoutPanelContentContainer", CmsDomUtil.Tag.div, tabRoot));
          for (Element e : tabContentDivs) {
              e.getParentElement().getStyle().setOverflow(Overflow.VISIBLE);
          }
  
      }
docs: Sets the overflow of the tab layout content's parent to visible.<p>