This is not a CSS preprocessor, but can replace one. This is a CSS transpiler (CSS4+ to CSS3) that allow you to use tomorrow's CSS syntax today. It transforms CSS specs that are not already ...

CSS(Cascaded Style Sheets) defines how to display HTML documents. CSS is used by both the authors and readers of web pages to define colors, fonts, layout and other aspects of document presentation.

Cascading Style Sheets (CSS) define how HTML elements appear on a webpage, controlling fonts, colors, spacing, and layout. WordPress themes include built-in design settings, but you often need custom ...