It's not that simple if you want JSX. https://legacy.reactjs.org/docs/add-react-to-a-website.html#optional-try-react-with-jsx https://legacy.reactjs.org/docs/a

It's not that simple if you want JSX. https://legacy.reactjs.org/docs/add-react-to-a-website.html#optional-try-react-with-jsx https://legacy.reactjs.org/docs/add-react-to-a-website.html#... if this is up to date