@Override
 protected AbstractOrderedLayout getAbstractOrderedLayout() {
   final VerticalLayout formLayout = new VerticalLayout();
   if (GroupType.NORMAL.equals(getVElement().getGroupType())) {
     formLayout.addStyleName(GROUP_STYLE_NAME);
   }
   return formLayout;
 }
 @Override
 protected boolean isMargin() {
   return GroupType.NORMAL.equals(getVElement().getGroupType());
 }