Turbine

Turbine is a collection of PHP-powered tools that are designed to decrease css development time and web developer headache. This includes:

A new, minmal syntax – the less you have have to type, the more you get done

Packing, gzipping and automatic minification of multiple style files

Constants (also known as "css variables") and selector aliases as well as nested css selectors

Oop-like inheritance, extension and templating features

Built-in device-, browser- and os sniffing

Many automatic bugfixes and enhancements for older browsers

Fully exensible through a very simple plugin system. A basic understanding of PHP is enough to add completely new features to Turbine

A CSS to Turbine converter and a shell app for experiments and development

via Turbine.