JavaScriptServices/templates/ReactSpa/ClientApp/boot.tsx

import 'bootstrap/dist/css/bootstrap.css';
import './css/site.css';

import * as React from 'react';
import * as ReactDOM from 'react-dom';
import { browserHistory, Router } from 'react-router';
import { routes } from './routes';

ReactDOM.render(
    <Router history={ browserHistory } children={ routes } />,
    document.getElementById('react-app')
);