I uninstalled Atom and now using Brackets as my main editor for my website.
Internally, I still love using Vim so Brackets will never replace that.
When I am coding html or css, I will be using this so I can live preview. I find it much better than Atom's live preview.
See screenshot. It will use your default browser to do the live preview.

I highly recommend getting the extension Beautify. It is a life changer.