ReactDOM.render is not define line 30. My container div is not change. Thanks you sir.
ReactDOM.render is not define line 30. My container div is not display li. https://code.sololearn.com/WBPdY81dTx8J/?ref=app
I changed links to diferent version and code work. https://code.sololearn.com/W8t7tqsps7sh/?ref=app
Also React is much better to practice in code editor or if you cant, try some sites. Code pen can help for simple aplication. I used that to make some freecodecamp projects.