old_contents: require('normalize.css');
  require('styles/App.css');
  
  import React from 'react';
  
  let yeomanImage = require('../images/yeoman.png');
  
  class AppComponent extends React.Component {
    render() {
      return (
        <div className="index">
          <img src={yeomanImage} alt="Yeoman Generator" />
          <div className="notice">Please edit <code>src/components/Main.js</code> to get started!</div>
        </div>
      );
    }
  }
  
  AppComponent.defaultProps = {
  };
  
  export default AppComponent;
  
new_contents: require('normalize.css');
  require('styles/App.css');
  
  import React from 'react';
  
  let yeomanImage = require('../images/yeoman.png');
  
  class AppComponent extends React.Component {
    constructor(props, context) {
      super(props, context);
      this.state = { background: 'red' };
    }
    render() {
      return (
        <div className="index">
          <img src={yeomanImage} alt="Yeoman Generator" />
          <div className="notice" style={{ background: this.state.background }}>Please edit <code>src/components/Main.js</code> to get started!</div>
        </div>
      );
    }
  }
  
  AppComponent.defaultProps = {
  };
  
  export default AppComponent;
  
subject: Add in red background!