Use lab() and lch() color functions in CSS
Use the range notation in CSS media queries
Ensure values are ordered consistently in your CSS.
Using more intuitive `>=`, `<=`, `>`, `<` instead of media queries min/max prefix.
Correctly declare progressive enhancements for CSS Custom Properties.
Use oklab() and oklch() color functions in CSS
Use the color-mix function in CSS
Use the relative color syntax in CSS
Keep only the CSS you need based on comments and your browserslist
Convert values with PostCSS (e.g. ms -> s)
Use vb and vi length units in CSS
Use double-position gradients in CSS
Use flow-relative (inline-start and inline-end) values for float and clear
Use the parts of normalize.css or sanitize.css you need from your browserslist
Optimise inline SVG with PostCSS.
PostCSS plugin to fallback initial keyword.
A CSS Modules transform to extract local aliases for inline imports
Use pow(), sqrt(), hypot(), log(), exp() exponential functions in CSS
Use number values in aspect-ratio media queries.
Use logical values in the resize property
PostCSS syntax for parsing HTML (and HTML-like)
Use logical overscroll behavior properties and values in CSS
PostCSS plugin to keep rules and at-rules content in order.
Use Custom Media Queries in CSS