import React from 'react';
import ReactDOM from 'react-dom/client';

class Car extends React.Component {
  render() {
    return <h2>I am a {this.props.color} Car!</h2>;
  }
}

const container = document.getElementById('root');
const root = ReactDOM.createRoot(container);
root.render(<Car color="red"/>);

              
localhost:3000