import React from 'react'; import ReactDOM from 'react-dom/client'; class Header extends React.Component { constructor(props) { super(props); this.state = {favoritecolor: "red"}; } render() { return ( <h1>My Favorite Color is {this.state.favoritecolor}</h1> ); } } const root = ReactDOM.createRoot(document.getElementById('root')); root.render(<Header />);