Use oklab() and oklch() color functions in CSS
Use env() variables in CSS
PostCSS plugin to fallback initial keyword.
PostCSS plugin to transform W3C font-variant properties to more compatible CSS (font-feature-settings)
Use the :focus-visible pseudo-selector in CSS
SCSS parser for PostCSS
Use double-position gradients in CSS
Detective to find dependents of CSS (PostCSS dialect)
Generate fallback values for content with alt text
Correctly declare progressive enhancements for CSS Custom Properties.
PostCSS syntax for parsing HTML (and HTML-like)
Minify at-rule params with PostCSS
Use postcss to process your css with a large selection of JavaScript plug-ins.
Determine selector specificity with postcss-selector-parser
Use the parts of normalize.css or sanitize.css you need from your browserslist
A CSS Modules transform to extract local aliases for inline imports
automatically keep css selectors unique
PostCSS plugin to transform :not() W3C CSS level 4 pseudo class to :not() CSS level 3 selectors
Parse CSS and add vendor prefixes to CSS rules using values from the Can I Use website
Resolve nested CSS selectors
A CSS property value parser for use with PostCSS
Utilities for PostCSS plugins
Use a place-* shorthand for align-* and justify-* in CSS
Nest rules inside each other in CSS