useHTMLContainer.ts

function useHTMLContainer() {
  const container = useRef<HTMLDivElement | null>(null);

  useEffect(() => {
    const element = document.createElement('div');
    document.body.appendChild(element);
    container.current = element;

    return () => {
      if (container.current) {
        document.body.removeChild(container.current);
        container.current = null;
      }
    };
  }, []);

  return container.current;
}