CSS with superpowers

Sass: Syntactically Awesome Style Sheets

http://sass-lang.com/

Sass is the most mature, stable, and powerful professional grade CSS extension language in the world.

your laptop needs more Sass. Grab a set of Sass stickers now.

http://sass-lang.com/implementation

https://github.com/sass/sass

https://github.com/twbs/bootstrap-sass

https://en.wikipedia.org/wiki/Sass_(stylesheet_language)

http://koala-app.com/index.html

sass解析器就是将你编写的 css 或 scss文件 全部解析成css文件！

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SASS CSS3 koala

原文：http://www.cnblogs.com/xgqfrms/p/4973082.html