How do I create dynamic CSS in Rails?

Question

what is the best/most efficient way of creating dynamic CSS with Rails. I am developing an admin area on a site, where I would like a user to be able to customize the style

Answer 1

This solution defines some constants in config/site_settings.rb, which can then be used throughout the Rails application, as well as for automatically generating the CSS files whenever the Rails app starts and the CSS input files have been modified..

http://unixgods.org/~tilo/Ruby/Using_Variables_in_CSS_Files_with_Ruby_on_Rails.html