Initial parent component (before we add child components)

blog-app.js

'use strict';

class BlogApp extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      blogPost: {}
    };
  }

  render() {
    return (
      <div>Welcome!</div>
    )
  }
}

ReactDOM.render(<BlogApp />, document.getElementById('react-content'));