Cascading Style Sheets (CSS) is a simple mechanism for adding style (e.g., fonts, colors, spacing) to Web documents.
Cost / License
- Free
- Open Source
Platforms
- Self-Hosted
Cascading Style Sheets (CSS) is a simple mechanism for adding style (e.g., fonts, colors, spacing) to Web documents.
Sass is a stylesheet language initially designed by Hampton Catlin and developed by Nathan Weizenbaum. After its initial versions, Nathan Weizenbaum and Chris Eppstein have continued to extend Sass with SassScript, a simple scripting language used in Sass files.
Less (which stands for Leaner Style Sheets) is a backwards-compatible language extension for CSS. This is the official documentation for Less, the language and Less.js, the JavaScript tool that converts your Less styles to CSS styles.


At Wix, we agree. We ? CSS. It’s simple, declarative syntax that is native in browsers is easily the fastest way to add styles to web pages and web apps. But when writing CSS that is scoped to individual components, developers have to maintain highly-specific selectors, using...