Sorts CSS declarations fast and automatically in a certain order.

Discard duplicate rules in your CSS files with PostCSS.

Normalize wrapping quotes for CSS string literals.

Merge CSS rules with PostCSS.

PostCSS plugin to unwrap nested rules like how Sass does it

Tokenize CSS

Ensure CSS selectors are unique.

Parse CSS and add vendor prefixes to CSS rules using values from the Can I Use website

Use cascade layers in CSS

Style form elements when they are empty

PostCSS plugin to transform W3C font-variant properties to more compatible CSS (font-feature-settings)

Normalize URLs with PostCSS

Exclude/warn on duplicated PostCSS plugins.

Use the overflow shorthand in CSS

Use the rebeccapurple color keyword in CSS

Style elements relative to other elements in CSS

Normalize multiple value display syntaxes into single values.

Use 4 & 8 character hex color notation in CSS

Safe defaults for cssnano which require minimal configuration.

Display resolution-dependent images using the image-set() function in CSS