The Reference Element Pseudo-class: :scope

Use logical values in the resize property

Use pow(), sqrt(), hypot(), log(), exp() exponential functions in CSS

Use logical overflow properties and values in CSS

PostCSS plugin to keep rules and at-rules content in order.

A CSS Modules transform to extract local aliases for inline imports

Use Custom Media Queries in CSS

Merge CSS rules with PostCSS.

Post CSS Prefix Plugin for webpack

Generate fallback values for content with alt text

Use Custom Properties Queries in CSS

Advanced optimisations for cssnano; may or may not break your CSS!

Transforms css values and at-rule params into the tree

Gamut map css colors to fit display specific gamuts

Fallback `position-area` to the alternate name `inset-area`

Mix any number of colors with the color-mix function in CSS

Determine selector specificity with postcss-selector-parser

Resolve nested CSS selectors

Parse CSS and add vendor prefixes to CSS rules using values from the Can I Use website

Dynamically specify a text color with adequate contrast