CSSRefresh-VIM is a free and open source plug-in for VIM which will auto-refresh the CSS files of the current Safari tab after saving a CSS file.
Usage: · Install the CSSRefresh-VIM plugin using pathogen (alternatively, just copy the files to `~/.vim/plugin`). · Open your project in Safari. Make sure it`s the front-most tab. · Open a CSS file in that project in VIM. · Make a few changes and save it. · Watch as Safari refreshes your CSS changes!