&sq=&lang=&file=File:LESS_Logo.svg){kind=logo} | |
| Designed by | Alexis Sellier |
|---|---|
| Developer | Alexis Sellier, Dmitry Fadeyev |
| First appeared | 2009 |
| Stable release | 4.2.0[1] 
/ 7 September 2023 |
| Typing discipline | Dynamic |
| Implementation language | JavaScript |
| OS | Cross-platform |
| License | Apache License 2.0 |
| Filename extensions | .less |
| Website | lesscss |
| Influenced by | |
| CSS, Sass | |
| Influenced | |
| Sass, Less Framework, Bootstrap (v3) | |
Less (Leaner Style Sheets; sometimes stylized as LESS) is a dynamic preprocessor style sheet language that can be compiled into Cascading Style Sheets (CSS) and run on the client side or server side.[2] Designed by Alexis Sellier, Less is influenced by Sass and has influenced the newer "SCSS" syntax of Sass, which adapted its CSS-like block formatting syntax.[3] Less is an open source project. Its first version was written in Ruby; however, in the later versions, use of Ruby has been deprecated and replaced by JavaScript. The indented syntax of Less is a nested metalanguage, as valid CSS is valid Less code with the same semantics. Less provides the following mechanisms: variables, nesting, mixins, operators and functions; the main difference between Less and other CSS precompilers is that Less allows real-time compilation via less.js by the browser.[2][4]
- ^ "Release 4.2.0". 7 September 2023. Retrieved 18 September 2023.
- ^ a b The Core Less Team. "Getting started | Less.js". Less.js. Retrieved 2021-03-19.
- ^ Weizenbaum, Nathan (2009-06-17). "Sass and Less : Nex3". Archived from the original on 2009-06-21. Retrieved 2021-03-19.
- ^ Meng, Jiew (2010-12-14). Mortensen, Peter (ed.). "css - Is there a SASS.js? Something like LESS.js?". Stack Overflow. Retrieved 2021-03-19.