Popular CSS Libraries

  1. twbs/bootstrap

    The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web. http://getbootstrap.com

    • 81K Stars
    • 32K Forks
  2. FortAwesome/Font-Awesome

    The iconic font and CSS toolkit http://fontawesome.io

    • 33K Stars
    • 5.3K Forks
  3. daneden/animate.css

    A cross-browser library of CSS animations. As easy to use as an easy thing. http://daneden.github.io/animate.css

    • 22K Stars
    • 4.9K Forks
  4. zurb/foundation

    The most advanced responsive front-end framework in the world. Quickly create prototypes and production code for sites that work on any kind of device. http://foundation.zurb.com

    • 20K Stars
    • 4.3K Forks
  5. necolas/normalize.css

    A collection of HTML element and attribute style-normalizations http://necolas.github.io/normalize.css/

    • 16K Stars
    • 3.5K Forks
  6. driftyco/ionic

    Advanced HTML5 mobile development framework and SDK. Build incredible hybrid apps with web technologies you already know and love. Best friends with AngularJS. http://ionicframework.com/

    • 16K Stars
    • 2.6K Forks
  7. Semantic-Org/Semantic-UI

    Semantic is a UI component framework based around useful principles from natural language. http://www.semantic-ui.com

    • 17K Stars
    • 1.9K Forks
  8. yahoo/pure

    A set of small, responsive CSS modules that you can use in every web project. http://purecss.io/

    • 11K Stars
    • 1.4K Forks
  9. twbs/ratchet

    Build mobile apps with simple HTML, CSS, and JavaScript components. http://goratchet.com

    • 11K Stars
    • 1.2K Forks
  10. designmodo/Flat-UI

    Flat UI Free - Design Framework (html/css3/less/js). Flat UI is based on Bootstrap, a comfortable, responsive, and functional framework that simplifies the development of websites. http://designmodo.com/flat-free/

    • 9.8K Stars
    • 1.9K Forks
  11. h5bp/Effeckt.css

    A Performant Transitions and Animations Library http://h5bp.github.io/Effeckt.css

    • 9.6K Stars
    • 1.4K Forks
  12. dhg/Skeleton

    Skeleton: A Dead Simple, Responsive Boilerplate for Mobile-Friendly Development http://www.getskeleton.com

    • 8.7K Stars
    • 1.5K Forks
  13. Dogfalo/materialize

    Materialize, a CSS Framework based on Material Design http://materializecss.com

    • 9.5K Stars
    • 1.0K Forks
    • 5.9K Stars
    • 1.5K Forks
  14. Compass/compass

    Compass is a Stylesheet Authoring Environment that makes your website design simpler to implement and easier to maintain. http://compass-style.org

    • 6.3K Stars
    • 1.2K Forks
  15. olton/Metro-UI-CSS

    CSS styles for build Windows 8 Metro UI stylable interface http://metroui.org.ua/

    • 4.3K Stars
    • 1.6K Forks
  16. thoughtbot/bourbon

    A lightweight Sass tool set. http://bourbon.io

    • 5.8K Stars
    • 631 Forks
  17. uikit/uikit

    A lightweight and modular front-end framework for developing fast and powerful web interfaces. http://getuikit.com

    • 4.9K Stars
    • 928 Forks
  18. joshuaclayton/blueprint-css

    A CSS framework that aims to cut down on your CSS development time http://www.blueprintcss.org

    • 5.4K Stars
    • 598 Forks
  19. alexwolfe/Buttons

    A CSS button library built using Sass and Compass http://unicorn-ui.com/buttons/builder/

    • 4.3K Stars
    • 819 Forks
  20. stubbornella/oocss

    Object Oriented CSS Framework http://stubbornella.org/

    • 4.6K Stars
    • 631 Forks
  21. yui/yui3

    A library for building richly interactive web applications. http://yuilibrary.com/

    • 3.0K Stars
    • 1.0K Forks
  22. topcoat/topcoat

    CSS for clean and fast web apps http://topcoat.io

    • 4.1K Stars
    • 422 Forks
  23. csswizardry/inuit.css

    Powerful, scalable, Sass-based, BEM, OOCSS framework. http://inuitcss.com

    • 3.9K Stars
    • 528 Forks
  24. chinchang/hint.css

    A tooltip library in CSS for your lovely websites. http://kushagragour.in/lab/hint/

    • 3.3K Stars
    • 425 Forks
  25. nathansmith/960-Grid-System

    The 960 Grid System is an effort to streamline web development workflow. http://960.gs

    • 3.0K Stars
    • 502 Forks
  26. GumbyFramework/Gumby

    A Flexible, Responsive CSS Framework - Powered by Sass http://gumbyframework.com/

    • 2.9K Stars
    • 503 Forks
  27. Huddle/PhantomCSS

    Visual/CSS regression testing with PhantomJS https://github.com/Huddle/PhantomCSS

    • 2.8K Stars
    • 173 Forks
  28. ericam/susy

    Responsive layout toolkit for Sass http://susy.oddbird.net/

    • 2.6K Stars
    • 296 Forks
  29. zmoazeni/csscss

    A CSS redundancy analyzer that analyzes redundancy. http://zmoazeni.github.io/csscss/

    • 2.8K Stars
    • 140 Forks
  30. hakimel/Meny

    A three dimensional and space effecient menu http://lab.hakim.se/meny/

    • 2.0K Stars
    • 470 Forks
  31. mojotech/jeet

    The most advanced, yet intuitive, grid system available for Sass or Stylus http://jeet.gs

    • 2.2K Stars
    • 226 Forks
  32. jalxob/cool-kitten

    A parallax scrolling responsive framework https://github.com/jalxob/cool-kitten

    • 1.5K Stars
    • 566 Forks
  33. madebysource/lesshat

    Smart LESS CSS mixins library. http://lesshat.com

    • 2.0K Stars
    • 272 Forks
  34. yairEO/fancyInput

    Makes typing in input fields fun with CSS3 effects https://github.com/yairEO/fancyInput

    • 1.8K Stars
    • 286 Forks
  35. suitcss/suit

    Style tools for UI components http://suitcss.github.io/

    • 1.9K Stars
    • 104 Forks
  36. groundworkcss/groundwork

    Say hello to responsive design made easy. http://groundworkcss.github.io/

    • 1.6K Stars
    • 354 Forks
  37. mdo/preboot

    A collection of LESS mixins and variables for writing better CSS. http://getpreboot.com

    • 1.7K Stars
    • 197 Forks
  38. tylertate/semantic.gs

    The Semantic CSS Grid: Page Layout for Tomorrow http://Semantic.gs

    • 1.6K Stars
    • 293 Forks
    • 1.4K Stars
    • 394 Forks
  39. tj/nib

    Stylus mixins, utilities, components, and gradient image generation http://tj.github.com/nib/

    • 1.5K Stars
    • 223 Forks
  40. jonikorpi/Frameless

    The spiritual successor to Less Framework http://framelessgrid.com/

    • 1.2K Stars
    • 262 Forks
  41. sapo/Ink

    An HTML5/CSS3 framework used at SAPO for fast and efficient website design and prototyping http://ink.sapo.pt

    • 1.3K Stars
    • 227 Forks
  42. nathansmith/formalize

    Teach your forms some manners! http://formalize.me

    • 1.3K Stars
    • 130 Forks
    • 1.3K Stars
    • 92 Forks
  43. joshuagatcke/HTML-KickStart

    Ultra–Lean HTML Building Blocks for Rapid Website Production http://www.99lime.com

    • 1.2K Stars
    • 245 Forks
  44. daneden/Toast

    An insane grid. You’ve been warned. http://daneden.github.io/Toast

    • 1.0K Stars
    • 166 Forks
  45. csswizardry/csswizardry-grids

    Simple, fluid, nestable, flexible, Sass-based, responsive grid system. http://csswizardry.com/csswizardry-grids

    • 1.1K Stars
    • 168 Forks
  46. artofrawr/profoundgrid

    Responsive grid for fixed & fluid layouts. http://www.profoundgrid.com

    • 939 Stars
    • 175 Forks
  47. nathansmith/unsemantic

    Fluid grid for mobile, tablet, and desktop. http://unsemantic.com

    • 1.0K Stars
    • 145 Forks
  48. jenius/roots

    a toolkit for rapid advanced front-end development http://roots.cx

    • 1.2K Stars
    • 100 Forks
  49. fffunction/sassaparilla

    Start your web projects fast with Sassaparilla http://sass.fffunction.co

    • 1.1K Stars
    • 176 Forks
  50. paranoida/sass-mediaqueries

    Media Queries mixins for Sass - fully customizable and very easy to use. http://paranoida.github.com/sass-mediaqueries/

    • 842 Stars
    • 99 Forks
  51. IcaliaLabs/furatto

    It's a flat, fast and powerful front-end framework for rapid web development. https://github.com/IcaliaLabs/furatto

    • 847 Stars
    • 128 Forks
  52. Wolfr/clank

    Clank: open source prototyping framework for mobile apps http://getclank.com/

    • 938 Stars
    • 93 Forks
  53. heygrady/scss-blend-modes

    Using standard color blending functions in SASS. https://github.com/heygrady/scss-blend-modes

    • 800 Stars
    • 132 Forks
  54. richleland/pygments-css

    css files created from pygment's built-in styles http://richleland.github.io/pygments-css/

    • 496 Stars
    • 173 Forks
  55. cjdsie/wirefy

    Wirefy is a browser based responsive wireframe tool, which allows you to create functional wireframes using standard elements. Think of it as the foundation for your content to be built on. This allows you to focus on the content rather than the design to get faster sign off. Wirefy is not a one-solution answer. http://getwirefy.com

    • 695 Stars
    • 100 Forks
  56. csscomb/csscomb

    ! DEPRECATED ! Please use csscomb.js instead https://github.com/csscomb/csscomb.js

    • 665 Stars
    • 55 Forks
  57. matthewhartman/base

    Base is a super simple, responsive framework, built to work on all devices big, small and in-between. http://matthewhartman.github.io/base/

    • 569 Stars
    • 78 Forks
  58. maxmert/maxmertkit

    Maxmertkit, powerful, most customizable and easiest for usage mobile first front-end framework for web-development. http://maxmert.com

    • 529 Stars
    • 91 Forks
  59. malarkey/Rock-Hammer

    A curated project library for Hammer For Mac. Rock Hammer contains baseline typography, plus styling for common HTML elements including images, forms and tables, as well as navigation, responsive modules and widgets https://github.com/malarkey/Rock-Hammer

    • 502 Stars
    • 69 Forks
    • 375 Stars
    • 96 Forks
  60. soyjavi/tuktuk

    Simple (but powerful) RWD Framework https://github.com/soyjavi/tuktuk

    • 564 Stars
    • 129 Forks
  61. designbyjake/sassline

    Set text on the web to a baseline grid with Sass & rems. http://sassline.com

    • 476 Stars
    • 49 Forks
    • 494 Stars
    • 41 Forks
    • 416 Stars
    • 43 Forks
  62. andytlr/cssgrid

    The 1140px CSS Grid, fluid to mobile. http://cssgrid.net

    • 335 Stars
    • 168 Forks
  63. mourner/dead-simple-grid

    Dead Simple Grid is a responsive CSS grid micro framework that is just that. Dead simple. http://mourner.github.com/dead-simple-grid

    • 368 Stars
    • 47 Forks
  64. gillesbertaux/andy

    Open-Source Collection of Useful SASS Mixins Library http://gillesbertaux.com/andy

    • 426 Stars
    • 53 Forks
  65. justinhough/Centurion

    Centurion is a web-based framework for rapid prototyping and building larger web projects. http://www.centurionframework.com

    • 318 Stars
    • 69 Forks
  66. typeplate/starter-kit

    A @grayghostvisuals and @zakkain Joint™ Typeplate is a “Typographic Starter Kit.” We don’t make aesthetic design choices, but define proper markup with extensible styling for common typographic patterns. A stripped-down Sass library concerned with the appropriate technical implementation of design patterns—not how they look. http://typeplate.com

    • 348 Stars
    • 44 Forks
  67. cmaddux/littlebox

    Super simple to implement, CSS-only icons. http://littlebox.cabmaddux.com

    • 555 Stars
    • 31 Forks
  68. raphaelgoetter/KNACSS

    feuille de styles CSS sur-vitaminée http://www.knacss.com

    • 231 Stars
    • 50 Forks
    • 337 Stars
    • 53 Forks
  69. cburgmer/csscritic

    A lightweight tool for regression testing of Cascading Style Sheets http://cburgmer.github.io/csscritic

    • 294 Stars
    • 13 Forks
  70. jenius/rupture

    Simple media queries in stylus http://jenius.github.io/rupture

    • 282 Stars
    • 18 Forks
  71. TryKickoff/kickoff

    A lightweight front-end framework for creating scalable, responsive sites http://trykickoff.github.io/

    • 263 Stars
    • 43 Forks
  72. yahoo/debugCSS

    CSS to highlight potentially malformed, invalid or questionable markup. http://yahoo.github.com/debugCSS/

    • 273 Stars
    • 16 Forks
  73. newaeonweb/responsiveboilerplate

    A lightweight (2kb) micro-library, elegant & minimalistic CSS3 grid system, made with only three main classes and 12 columns. It`s very easy to use and understand, pre-packed with some extra css helpers for mobile devices. http://www.responsiveboilerplate.com

    • 228 Stars
    • 57 Forks
  74. jenius/axis

    terse, modular & powerful css library http://axis.netlify.com

    • 215 Stars
    • 36 Forks
  75. kaelig/hidpi

    Serve high resolution graphics to high density (Retina-like) displays with Sass. http://www.kaelig.fr/hidpi/examples/

    • 239 Stars
    • 12 Forks
  76. kanthvallampati/IVORY

    Simple, Flexible, & Powerful responsive web framework, Makes your web development faster and easier. It takes you all the way from 1200px on down to 320px. http://weice.in/ivory/

    • 204 Stars
    • 39 Forks
  77. csswizardry/beautons

    A beautifully simple button toolkit http://csswizardry.com/beautons

    • 203 Stars
    • 23 Forks
  78. JohnAlbin/zen-grids

    A Compass plugin for Zen Grids, a fluid responsive grid system http://next.zengrids.com

    • 224 Stars
    • 41 Forks
  79. devatrox/Sunglass

    A mixin and functions library for Sass http://devatrox.github.io/Sunglass/

    • 111 Stars
    • 8 Forks
  80. rowanmanning/pigeon

    Pigeon is an OOCSS framework for rapid prototyping and building smart, scalable websites. http://pigeoncss.com/

    • 150 Stars
    • 7 Forks
    • 165 Stars
    • 14 Forks
  81. weepower/wee

    Blueprint for modern web development https://www.weepower.com

    • 93 Stars
    • 3 Forks
    • 143 Stars
    • 19 Forks
    • 107 Stars
    • 8 Forks
  82. atomicpages/skeleton-sass

    Skeleton Sass is a highly modularized version of Skeleton CSS [written in Sass] http://atomicpages.github.io/skeleton-sass/

    • 54 Stars
    • 15 Forks
  83. djesse/yaml4-sass

    Sass port of CSS framework YAML http://www.yaml.de

    • 56 Stars
    • 13 Forks
  84. Darklg/CSSCommon

    Simple Modular CSS Framework http://csscommon.com

    • 41 Stars
    • 4 Forks
  85. dreyacosta/xpressio

    Small and Fast RWD front-end framework http://xpress.io

    • 30 Stars
    • 8 Forks
  86. Robdel12/Thumper

    Simple Infinite responsive grid system built to work in any web application, CMS, or blog. https://github.com/Robdel12/Thumper

    • 49 Stars
    • 8 Forks
  87. Kilian/sencss

    The sensible standards CSS baseline http://sencss.kilianvalkhof.com/

    • 53 Stars
    • 4 Forks
  88. rowanmanning/cssdb

    CSSDB: A curated collection of great CSS, Sass, LESS and Stylus libraries. http://cssdb.co/

    • 29 Stars
    • 3 Forks
  89. tsi/Salsa

    Syntactically Awesome Layout System... Awesome! http://tsi.github.com/Salsa/

    • 46 Stars
    • 4 Forks
  90. nico3333fr/ROCSSTI

    RÖCSSTI : pour démarrer vos CSS avec la patate ! http://rocssti.net/

    • 31 Stars
    • 5 Forks
  91. paranoida/simple-ui

    Simple UI is a set of the most popular components used in many web applications. http://paranoida.github.com/simple-ui/

    • 37 Stars
    • 3 Forks
    • 29 Stars
    • 6 Forks
  92. srsgores/sass-boilerplate

    Starting template for creating new html5 websites using SASS and Compass https://github.com/srsgores/sass-boilerplate

    • 32 Stars
    • 4 Forks
  93. lmc-eu/emerald

    Emerald is a pragmatic responsive grid system in LESS http://lmc-eu.github.io/emerald/

    • 31 Stars
    • 4 Forks
  94. mrrocks/simpletastic

    Simplestastic is a super lightweight framework written in SASS that makes it super easy create to fluid grids. https://github.com/mrrocks/simpletastic

    • 33 Stars
    • 3 Forks
  95. chrishumboldt/Blueplate

    A lightweight, responsive CSS layout engine and SASS mixin library. http://getwebplate.com/plugins/blueplate

    • 28 Stars
    • 4 Forks
  96. rowanmanning/frag

    Frag is a fluid, responsive, simple grid system for CSS written in Sass. http://fragcss.com/

    • 26 Stars
    • 3 Forks
  97. tinywall/scrollzip

    jQuery plugin to trigger action if element is visible while scrolling http://demo.tinywall.net/scrollzip/

    • 18 Stars
    • 5 Forks
  98. sebnitu/BaseWeb

    A fresh front-end bootstrap framework. https://github.com/sebnitu/BaseWeb

    • 14 Stars
    • 3 Forks
  99. Snugug/toolkit

    Toolkit for Responsive Web Design and Progressive Enhancement with Compass https://github.com/Snugug/toolkit

    • 10 Stars
    • 2 Forks
  100. perryharlock/my-bootstrap

    All you need to build a simple static web site https://github.com/perryharlock/my-bootstrap

    • 6 Stars
    • 1 Forks
  101. juanghurtado/flaminwork

    Front-end framework (XHTML/CSS/Javascript) http://flaminwork.com/

    • 5 Stars
    • 2 Forks
  102. joshuakim/jQuery-Mobile-Theme-SASS

    Theme jQuery Mobile with SASS and Compass. Easily create new swatches with custom names https://github.com/joshuakim/jQuery-Mobile-Theme-SASS

    • 2 Stars
    • 2 Forks
    • 3 Stars
    • 1 Forks
  103. seelva/seelva

    Seelva is a CSS and HTML Framework built with SASS and Compass. http://seelva.com/

    • 2 Stars
    • 1 Forks
  104. ride-css/ride-css

    A stylus mixins library for a faster css development. http://ridecss.com

    • 4 Stars
    • 0 Forks
  105. tiko2015/snippets

    framework css escalable basado en less https://github.com/tiko2015/snippets

    • 4 Stars
    • 0 Forks
  106. kurbmedia/facades

    Mixins, utilities, and helpers for front-end design/development with Compass / Rails http://kurbmedia.github.com/facades/

    • 3 Stars
    • 0 Forks
  107. rowanmanning/rem

    Rem is a simple mixin for Sass which converts pixel values to rem values with a pixel fallback. https://github.com/rowanmanning/rem

    • 2 Stars
    • 0 Forks
  108. rowanmanning/catchup

    Catchup is a small set of CSS3 and CSS 2.1 compatibility mixins for LESS. https://github.com/rowanmanning/catchup

    • 1 Stars
    • 1 Forks
  109. MikeBallan/Amazium

    The responsive CSS web framework http://www.amazium.co.uk

    • 0 Stars
    • 0 Forks
  110. Darklg/CSSNormalize

    CSSNormalize s'appelle désormais CSSCommon ! https://github.com/Darklg/CSSNormalize

    • 0 Stars
    • 0 Forks
  111. banquito/naranju

    Sistema integral de desarrollo frontend https://github.com/banquito/naranju

    • 0 Stars
    • 0 Forks
    • 1 Stars
    • 0 Forks