code: public static Element getFirstChildElement(Node node) {
      	
      	if(node instanceof NestableNode) {
      		return ((NestableNode) node).getFirstElementChild();
      	}
          
          return null;
      }
docs: Get the first child node that is an element node.
  
  @param node The node whose children should be iterated.
  @return The first child element or {@code null}.