Identify slow plugins in your PostCSS config
Color helpers to ease transformation between formats, gamut, etc
Algorithms to help you parse CSS from an array of tokens.
Convert modern CSS into something browsers understand
Use unquoted format on @font-face CSS definitions.
Use two values display syntax for inner and outer display types.
Tokenize CSS
Solve CSS math expressions
Resolve nested CSS selectors
Utilities for PostCSS plugins
Determine selector specificity with postcss-selector-parser
Use the unset keyword in CSS.
Use the ic length unit
A pseudo-class for matching elements in a selector list
Parse CSS color values
Parse CSS media query lists.
Use cascade layers in CSS
Use oklab() and oklch() color functions in CSS
Correctly declare progressive enhancements for CSS Custom Properties.
Use env() variables in CSS
Use the color() function in CSS
Use the range notation in CSS media queries
PostCSS plugin to fallback initial keyword.
Use text-decoration in it's shorthand form in CSS