[vailripper]

this is a pretty awesome idea. Maybe I'm just inefficient, but I always find myself spending a stunning amount of time tweaking CSS, refreshing the page, ad nauseum. The only downside I see is that in order to modify your site CSS, it seems you would have to be running this tool, and you wouldn't be able to use your IDE of choice.

[timmaah]

And you have to rely on a third party for hosting your css.

[alecperkins]

Does exactly what it sounds like, and lets you edit the source however you want: http://livereload.com/

[vailripper]

Is there anything like this for PC?

[alecperkins]

The older CLI version of Livereload is Ruby-based and can be installed on Windows. https://github.com/mockko/livereload