SingleElementNode holder = node.getOrCreateNode(ElementUtils.generateNodeId(e), SingleElementNode.class);
//SingleElementNode holder = parent.getOrCreateNode(ElementUtils.generateNodeId(e), SingleElementNode.class);
holder.setZIndex(++zIndex);
SingleElementNode holder = node.getOrCreateNode(ElementUtils.generateNodeId(e), SingleElementNode.class);
//SingleElementNode holder = parent.getOrCreateNode(ElementUtils.generateNodeId(e), SingleElementNode.class);
holder.setZIndex(++zIndex);