index.js
index.html
 

import React from 'react';
import ReactDOM from 'react-dom';
class Car extends React.Component {
  render() {
    return <h2>I am a {this.props.brand}!</h2>;
  }
}
class Garage extends React.Component {
  render() {
    return (
      <div>
      <h1>Who lives in my Garage?</h1>
      <Car brand="Ford" />
      </div>
    );
  }
}
ReactDOM.render(<Garage />, document.getElementById('root'));
localhost:3000