Trim whitespace inside and around CSS rules & declarations.
Nest rules inside each other in CSS
PostCSS plugin to transform :not() W3C CSS level 4 pseudo class to :not() CSS level 3 selectors
Normalize URLs with PostCSS
PostCSS plugin to transform percentage-based opacity values to more compatible floating-point values.
Normalize CSS animation/transition timing functions.
Use two values display syntax for inner and outer display types.
Ensure CSS selectors are unique.
Use a place-* shorthand for align-* and justify-* in CSS
SCSS parser for PostCSS
Use the :focus-within pseudo-selector in CSS
Merge longhand properties into shorthand with PostCSS.
Use unquoted format on @font-face CSS definitions.
PostCSS syntax for parsing CSS in JS literals
Use the overflow shorthand in CSS
Use Custom Selectors in CSS
PostCSS plugin to transform clamp() to combination of min/max
Use the rebeccapurple color keyword in CSS
Discard duplicate rules in your CSS files with PostCSS.
Use the ic length unit
Use the :any-link pseudo-class in CSS
Use the gap, column-gap, and row-gap shorthand properties in CSS
Use 4 & 8 character hex color notation in CSS
PostCSS plugin to transform W3C font-variant properties to more compatible CSS (font-feature-settings)