Replace :nth-child selectors with :first-child+ selectors
Repositories
csstools repositories
Use the opacity property in older Internet Explorer
Convert rgba() values to hex
Swap :root with html in CSS selectors
Transform CSS with visitor-based plugins
Use vmax in Internet Explorer and Edge
Check CSS for WCAG color contrast compliance
Transform CSS keywords into custom values in CSS
Write SVGs directly in CSS
Use Sass-like markup in your CSS
Configure PostCSS in Create React App without ejecting
A best-practices CSS foundation
Detect and warn against the use of physical properties in CSS
Test stylelint plugins
A stylelint rule to catch usage of unknown custom properties
Use the native system font of the OS running the browser