Save CSS

Save CSS is a Chrome extension that speeds up your web UI development workflow
by automatically saving your CSS and Javascript modifications in Chrome
Developer Tools into the local disk. Eliminate manual copying and pasting of
CSS values from Developer Tools to source files and install this extension.

This extension requires an external script that is written in Python or Ruby. Pick one of them:

Get the python script from: https://raw.github.com/tomimick/chrome-ext-save-css/master/servers/server.py

Alternatively, get the Ruby script from: https://raw.github.com/tomimick/chrome-ext-save-css/master/servers/server.rb

See usage and technical information in author's blog in http://tomicloud.com/2012/04/save-css-chrome-ext