Suggest an editImprove this articleRefine the answer for “What are the main CSS preprocessors?”. Your changes go to moderation before they’re published.Approval requiredContentWhat you’re changing🇺🇸EN🇺🇦UAPreviewTitle (EN)Short answer (EN)**The most common CSS preprocessors** are Sass (SCSS syntax), LESS and Stylus. **Key point:** these three are considered the basic and best-known preprocessors.Shown above the full answer for quick recall.Answer (EN)ImageThe most common CSS preprocessors: **1. Sass (SCSS syntax)** The most popular and most developed preprocessor. Supports variables, nesting, mixins, functions, modules and advanced code-structuring features. SCSS syntax closely resembles plain CSS. **2. LESS** Historically one of the first popular preprocessors. More often found in older or already existing frontend projects. Has capabilities similar to Sass, but is less flexible and develops more slowly. **3. Stylus** Uses a minimalist syntax, allowing different styles of writing (with or without curly braces). Flexible, but less common than Sass. These three are considered the basic and best-known preprocessors.For the reviewerNote to the moderator (optional)Visible only to the moderator. Helps review go faster.