Overview
Reference
The language and tool reference for writing, understanding and reviewing Master CSS.
Syntax 7
How a class names its declarations, selectors, conditions and layer.
Tokens 12
Every preset value, the classes that read it and how to change it.
Utilities 4
Preset recipes and numeric functions, with their declarations and constraints.
Directives 6
Stylesheet at-rules for imports, tokens, query definitions, reuse, scanning and pruning.
Tools 3
The CLI, the MCP server and the public packages.