https://github.com/morishitter/cssfmt - "CSSfmt is a tool that automatically formats CSS source code, inspired by Gofmt, and built on top of the PostCSS ecosystem."

• Node.js

With Package Control:

Run “Package Control: Install Package” command, find and install CSSfmt plugin.

Run the following command in your Sublime Text 3 packages directory:

$ git clone https://github.com/Redknife/sublime-cssfmt.git sublime-cssfmt

Depending on your OS (and Sublime Text version) the packages directories are:

• Linux: ~/.config/sublime-text-3/packages
• OS X: ~/Library/Application\ Support/Sublime\ Text\ 3/Packages
• Windows: %APPDATA%\Sublime Text 3\Packages

Press ctrl+shift+c or open "Tools" menu and select "Run CSSfmt" or open the Command Palette and write "Run CSSfmt"