By Wynn Netherland, Nathan Weizenbaum, and Chris Eppstein
The complexity of the web is not just limited to HTML markup. Due to their heavy reliance on external resources like images, other CSS files and fonts, stylesheets can become a serious maintenance burden. This article, based on chapter 7 of Sass and Compass in Action, explains how to use Compass helpers and configuration to generate URLs to your assets in a consistent way that lets you write the code once and then update your configuration as your asset serving needs change during the transition from prototype to production.

Abstracting URLs (PDF)