Use env() variables in CSS
Keep only the CSS you need based on comments and your browserslist
Use oklab() and oklch() color functions in CSS
Ensure values are ordered consistently in your CSS.
Use the range notation in CSS media queries
PostCSS plugin to fallback initial keyword.
Use flow-relative (inline-start and inline-end) values for float and clear
Use the color-mix function in CSS
Use double-position gradients in CSS
Use the relative color syntax in CSS
PostCSS plugin to fallback initial keyword.
Use pow(), sqrt(), hypot(), log(), exp() exponential functions in CSS
Use the parts of normalize.css or sanitize.css you need from your browserslist
Convert values with PostCSS (e.g. ms -> s)
Use number values in aspect-ratio media queries.
PostCSS syntax for parsing HTML (and HTML-like)
Use vb and vi length units in CSS
Use logical values in the resize property
A post-processing function that formats jsx code chunks using prettier and the babylon and postcss parsers
Optimise inline SVG with PostCSS.
The Reference Element Pseudo-class: :scope
PostCSS plugin to keep rules and at-rules content in order.
Use logical overscroll behavior properties and values in CSS
A CSS Modules transform to extract local aliases for inline imports