Keep only the CSS you need based on comments and your browserslist
Use oklab() and oklch() color functions in CSS
PostCSS plugin to fallback initial keyword.
Use the color-mix function in CSS
Use the relative color syntax in CSS
Use flow-relative (inline-start and inline-end) values for float and clear
PostCSS plugin to fallback initial keyword.
Convert values with PostCSS (e.g. ms -> s)
Use number values in aspect-ratio media queries.
Use double-position gradients in CSS
Use the parts of normalize.css or sanitize.css you need from your browserslist
Use pow(), sqrt(), hypot(), log(), exp() exponential functions in CSS
Optimise inline SVG with PostCSS.
Use vb and vi length units in CSS
PostCSS syntax for parsing HTML (and HTML-like)
PostCSS plugin to keep rules and at-rules content in order.
Use logical values in the resize property
The Reference Element Pseudo-class: :scope
A CSS Modules transform to extract local aliases for inline imports
Indent-based CSS syntax for PostCSS
Use logical overscroll behavior properties and values in CSS
Use Custom Media Queries in CSS
Transforms css values and at-rule params into the tree
Use logical overflow properties and values in CSS