content: import React from 'react';
  import { render } from 'react-dom';
  // import { Router, Route, Link } from 'react-router';
  import { Router, Route } from 'react-router';
  
  import Component from './Component';
  import Header from './Header';
  import NewSession from './NewSession';
  
  const NoMatch = React.createClass({
    render() {
      return <div>Not Found</div>;
    }
  });
  
  window.onload = () => {
    render((
      <div>
        <Header />
        <Router>
          <Route path='/' component={Component} />
          <Route path='/new' component={NewSession} />
          <Route path='*' component={NoMatch} />
        </Router>
      </div>
      ),
      document.querySelector('#container')
    );
  };
  