implementation of the Sass CSS meta-language

 Sass is a meta-language on top of CSS
 that’s used to describe the style of a document
 cleanly and structurally,
 with more power than flat CSS allows.
 Sass both provides a simpler, more elegant syntax for CSS
 and implements various features
 that are useful for creating manageable stylesheets.
 .
 Text::Sass is a Perl implementation of Sass.