From React's documentation: If you are integrating React into an existing app, you may have as many isolated root DOM nodes as you like. What am I missing? [

From React's documentation: If you are integrating React into an existing app, you may have as many isolated root DOM nodes as you like. What am I missing? [0] https://reactjs.org/docs/rendering-elements.html https://reactjs.org/docs/rendering-elements.html