Use logical overflow properties and values in CSS
Use Custom Media Queries in CSS
Use Custom Properties Queries in CSS
Transforms css values and at-rule params into the tree
Log PostCSS messages in the console
Determine selector specificity with postcss-selector-parser
CLI for PostCSS
Advanced optimisations for cssnano; may or may not break your CSS!
Generate fallback values for content with alt text
Parse CSS and add vendor prefixes to CSS rules using values from the Can I Use website
Merge CSS rules with PostCSS.
Gamut map css colors to fit display specific gamuts
Enable support for case insensitive attribute matching in selectors
Mix any number of colors with the color-mix function in CSS
Minify selectors with PostCSS.
Reduce initial definitions to the actual initial value, where possible.
Resolve nested CSS selectors
Use light and dark color schemes in all browsers
PostCSS plugin postcss-page-break to fallback `break-` properties with `page-break-` alias
Detect/remove browser hacks from CSS files.
Use the random function in CSS
PostCSS plugin for Sass-like variables
Fallback `position-area` to the alternate name `inset-area`
Use sin(), cos(), tan(), acos(), atan(), and atan2() to compute trigonometric relationships