content: import React from 'react';
  
  class Hello extends React.Component {
    greeting() {
      return "Hello";
    },
    render() {
      return (
        <h1>
          { this.greeting() } { this.props.name }
        </h1>
      );
    }
  }
  
  class Bonjour extends Hello {
    greeting() {
      return "Bonjour";
    },
  }
  
  React.render(<Bonjour name="Le Vim" />, element);
  