Use Sass as a PostCSS plugin
Repositories
csstools repositories
Use @extend and placeholder classes as you would in Sass
Use advanced shorthand properties in CSS
Define multiple sides on border properties in CSS
Use more border-radius properties in CSS
Define background-color within the color property in CSS
Use shorthand data attribute selectors in CSS
Define line-height within the font-size property in CSS
Write overflow-x and overflow-y with the overflow shorthand in CSS
Define sides within the position property in CSS
Use size properties in CSS
Omit sides within margin and padding properties in CSS
Use a shorthand text property in CSS
Target attributes beginning with a certain value in a space separated list
Quickly test PostCSS plugins
Fix mistakes in the design of CSS itself
Transform unnested CSS into nested CSS
Use shorthand transform properties in CSS
Remove media queries from CSS while preserving rules that match a hard-coded viewport
Remove :not selectors in CSS