### Minification - [x] merge identical rules - [x] merge adjacent rules - [x] minify colors - [x] compute shorthand: border-radius, border-width, margin, padding - [x] remove redundant declarations - [x] simple shorthand properties (padding, margin, etc). must have all required properties - [x] complex shorthand properties (background, font, etc.). may have optional properties - [x] conditionally unwrap :is() - [x] automatic css nesting - [x] automatically wrap selectors using :is() - [ ] multi-level shorthand properties (border - [border-width, border-color, etc.]) https://developer.mozilla.org/en-US/docs/Web/CSS/Shorthand_properties - [x] avoid reparsing (declarations, selectors, at-rule) - [x] avoid rerendering (declarations, selectors, at-rule) - [x] node and browser versions - [x] decode and replace utf-8 escape sequence ### Performance - [x] flatten @import # Testing - [x] node tests - [x] browser tests # Code Coverage - [x] node - [x] browser
