Reloading development server

I am trying to run a development server locally and code doesn't appear to reload code in the browser on save of file or on reload of browser. This happens when I run the server with `npm run start`.

Alternatively I have tried running a development server using nwb with `npm run serve` and then the code reloading does work. However, in this case no css is loaded and the index html is more bare than expected and of providence that I can't figure out:

```

react-hn

```

I am running this on MacOS
```
$ npm --version
4.6.1
$ node --version
v6.10.3
```