🎨 Awesome CSS

All projects, most starred first

• necolas/normalize.css on GitHub, opens in a new tab

  53.5Kstars

  A set of CSS rules that provide better cross-browser consistency in the default styling of HTML elements.

  CSS·MIT License·slowing·2 years ago

• styled-components/styled-components on GitHub, opens in a new tab

  41.1Kstars

  TypeScript·MIT License·active·13 hours ago

• postcss/postcss on GitHub, opens in a new tab

  29Kstars

  Transforming styles with JS plugins.

  TypeScript·MIT License·active·2 days ago

• microsoft/fluentui on GitHub, opens in a new tab

  20.2Kstars

  by Microsoft

  TypeScript·Other·active·12 hours ago

• material-components/material-components-web on GitHub, opens in a new tab

  17.1Kstars

  Modular and customizable Material Design UI components for the web.

  TypeScript·MIT License·slowing·2 years agoarchived

• less/less.js on GitHub, opens in a new tab

  17Kstars

  Backwards compatible with CSS, and the extra features it adds use existing CSS syntax.

  JavaScript·Apache License 2.0·active·4 days ago

• sass/sass on GitHub, opens in a new tab

  15.4Kstars

  Mature, stable, and powerful professional-grade CSS extension language.

  TypeScript·MIT License·active·5 days ago

• cssinjs/jss on GitHub, opens in a new tab

  7.1Kstars

  JavaScript·MIT License·slowing·2 years ago

• necolas/idiomatic-css on GitHub, opens in a new tab

  6.7Kstars

  by Nicolas Gallagher

  dormant·4 years ago

• Khan/aphrodite on GitHub, opens in a new tab

  5.3Kstars

  JavaScript·slowing·last year

• w3c/csswg-drafts on GitHub, opens in a new tab

  4.9Kstars

  Mirror of CSS WG Editor Draft repository.

  Bikeshed·Other·active·6 hours ago

• webpack/css-loader on GitHub, opens in a new tab

  4.3Kstars

  JavaScript·MIT License·active·5 days ago

• LeaVerou/prefixfree on GitHub, opens in a new tab

  3.8Kstars

  Break free from CSS prefix hell.

  JavaScript·MIT License·dormant·5 years agoarchived

• suitcss/suit on GitHub, opens in a new tab

  3.8Kstars

  HTML·dormant·4 years ago

• ThinkUpLLC/ThinkUp on GitHub, opens in a new tab

  3.3Kstars

  by ThinkUp

  PHP·GNU General Public License v3.0·dormant·10 years ago

• jgthms/minireset.css on GitHub, opens in a new tab

  2.8Kstars

  A tiny modern CSS reset.

  JavaScript·MIT License·slowing·2 years ago

• lojjic/PIE on GitHub, opens in a new tab

  2.8Kstars

  Allows Internet Explorer to recognize and render various CSS3 box decoration properties.

  HTML·Other·dormant·8 years agoarchived

• reworkcss/rework on GitHub, opens in a new tab

  2.7Kstars

  Plugin framework for CSS preprocessing in Node.js.

  JavaScript·MIT License·active·2 months ago

• trulia/hologram on GitHub, opens in a new tab

  2.2Kstars

  Ruby·Other·dormant·3 years ago

• csstree/csstree on GitHub, opens in a new tab

  2.1Kstars

  Detailed CSS parser with syntax validator.

  JavaScript·MIT License·steady·6 months ago

• w3c/css-houdini-drafts on GitHub, opens in a new tab

  1.9Kstars

  Mirror of Houdini WG Editor repository.

  Bikeshed·Other·active·2 weeks ago

• airbnb/react-with-styles on GitHub, opens in a new tab

  1.7Kstars

  JavaScript·MIT License·slowing·2 years ago

• keithclark/selectivizr on GitHub, opens in a new tab

  1.7Kstars

  A JavaScript utility that emulates CSS3 pseudo-classes and attribute selectors in Internet Explorer 6-8.

  JavaScript·dormant·9 years ago

• davidtheclark/scalable-css-reading-list on GitHub, opens in a new tab

  1.5Kstars

  slowing·2 years ago

• filamentgroup/fixed-sticky on GitHub, opens in a new tab

  1.5Kstars

  A CSS position:sticky polyfill.

  JavaScript·MIT License·dormant·9 years agoarchived

• SC5/sc5-styleguide on GitHub, opens in a new tab

  1.2Kstars

  JavaScript·MIT License·dormant·4 years agoarchived

• dropbox/css-style-guide on GitHub, opens in a new tab

  1.2Kstars

  by Dropbox

  Other·dormant·7 years ago

• jacobrask/styledocco on GitHub, opens in a new tab

  1.1Kstars

  JavaScript·MIT License·dormant·8 years ago

• Heydon/REVENGE.CSS on GitHub, opens in a new tab

  872stars

  A CSS bookmarklet that uses selectors to find bad markup, displaying ugly pink error messages in comic sans serif wherever you write bad HTML

  CSS·slowing·2 years ago

• kennethormandy/normalize-opentype.css on GitHub, opens in a new tab

  786stars

  Adds OpenType features—ligatures, kerning, and more—to Normalize.css.

  HTML·MIT License·dormant·9 years ago

• NV/CSSOM on GitHub, opens in a new tab

  758stars

  CSS Object Model implemented in pure JavaScript.

  JavaScript·MIT License·dormant·3 years ago

• styledown/styledown on GitHub, opens in a new tab

  667stars

  JavaScript·dormant·9 years ago

• ruilisi/css-checker on GitHub, opens in a new tab

  591stars

  Find and Reduce Similar & Duplicated CSS Scripts.

  Go·MIT License·dormant·4 years ago

• rtsao/csjs on GitHub, opens in a new tab

  572stars

  JavaScript·MIT License·dormant·10 years ago

• sourcejs/Source on GitHub, opens in a new tab

  544stars

  JavaScript·MIT License·slowing·last year

• tonyganch/gonzales-pe on GitHub, opens in a new tab

  328stars

  CSS parser with support for preprocessors.

  JavaScript·MIT License·steady·7 months ago

• webextensions/live-css-editor on GitHub, opens in a new tab

  313stars

  Magic CSS extension for Chrome, Firefox and Edge.

  JavaScript·MIT License·steady·8 months ago

• philipwalton/polyfill on GitHub, opens in a new tab

  297stars

  A library to make creating CSS polyfills much easier.

  JavaScript·MIT License·dormant·10 years agoarchived

• martinandert/babel-plugin-css-in-js on GitHub, opens in a new tab

  294stars

  JavaScript·MIT License·dormant·9 years ago

• CSSLint/parser-lib on GitHub, opens in a new tab

  294stars

  CSSLint/parser-lib.

  JavaScript·Other·slowing·2 years ago

• shorthandcss/shorthand on GitHub, opens in a new tab

  256stars

  Feature rich CSS framework for the new decade.

  SCSS·dormant·4 years ago

• sultan99/stylin on GitHub, opens in a new tab

  180stars

  TypeScript·MIT License·slowing·2 years ago

• stylecow/stylecow on GitHub, opens in a new tab

  164stars

  Modern CSS for all browsers.

  JavaScript·MIT License·dormant·6 years ago

• brettstimmerman/mensch on GitHub, opens in a new tab

  115stars

  A decent CSS parser.

  JavaScript·Other·dormant·4 years ago

• jfet97/strawberry on GitHub, opens in a new tab

  76stars

  A set of common flexbox utilities focused on making your life easier and faster with nested flexboxes.

  CSS·MIT License·dormant·7 years agoarchived

• bloodyowl/react-styled on GitHub, opens in a new tab

  39stars

  JavaScript·MIT License·dormant·10 years ago

• Martin-Pitt/css-unstyle on GitHub, opens in a new tab

  34stars

  Specialised stylesheet for removing user agent styles, style the web with your baseline.

  CSS·MIT License·slowing·3 years ago

• inturn/classy on GitHub, opens in a new tab

  23stars

  JavaScript·MIT License·dormant·9 years ago

• steambap/xpath-to-selector on GitHub, opens in a new tab

  14stars

  Convert xpath to css selector.

  TypeScript·MIT License·dormant·3 years ago

• Joony/styledoc on GitHub, opens in a new tab

  7stars

  JavaScript·dormant·15 years ago