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

    • 85K Stars
    • 34K Forks
  2. FortAwesome/Font-Awesome

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

    • 35K Stars
    • 5.8K 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

    • 24K Stars
    • 5.4K 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
    • 4.4K Forks
  5. driftyco/ionic

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

    • 18K Stars
    • 3.1K Forks
  6. necolas/normalize.css

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

    • 17K Stars
    • 3.7K Forks
  7. Semantic-Org/Semantic-UI

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

    • 19K Stars
    • 2.2K Forks
  8. Dogfalo/materialize

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

    • 12K Stars
    • 1.5K Forks
  9. yahoo/pure

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

    • 12K Stars
    • 1.5K Forks
  10. twbs/ratchet

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

    • 11K Stars
    • 1.3K Forks
  11. 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/

    • 10K Stars
    • 2.0K Forks
  12. dhg/Skeleton

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

    • 9.4K Stars
    • 1.7K Forks
  13. h5bp/Effeckt.css

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

    • 9.8K Stars
    • 1.4K Forks
    • 6.4K Stars
    • 1.7K 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

    • 6.4K Stars
    • 1.2K Forks
  15. olton/Metro-UI-CSS

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

    • 4.4K Stars
    • 1.7K Forks
  16. thoughtbot/bourbon

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

    • 6.2K Stars
    • 673 Forks
  17. uikit/uikit

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

    • 5.4K Stars
    • 1.1K 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
    • 609 Forks
  19. alexwolfe/Buttons

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

    • 4.5K Stars
    • 827 Forks
  20. stubbornella/oocss

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

    • 4.7K Stars
    • 644 Forks
  21. yui/yui3

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

    • 3.1K Stars
    • 1.1K Forks
  22. csswizardry/inuit.css

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

    • 3.9K Stars
    • 526 Forks
  23. chinchang/hint.css

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

    • 3.5K Stars
    • 441 Forks
  24. topcoat/topcoat

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

    • 4.1K Stars
    • 429 Forks
  25. GumbyFramework/Gumby

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

    • 2.9K Stars
    • 519 Forks
  26. nathansmith/960-Grid-System

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

    • 3.1K Stars
    • 515 Forks
  27. Huddle/PhantomCSS

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

    • 3.1K Stars
    • 180 Forks
  28. ericam/susy

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

    • 2.8K Stars
    • 312 Forks
  29. zmoazeni/csscss

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

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

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

    • 2.1K Stars
    • 474 Forks
  31. mojotech/jeet

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

    • 2.4K Stars
    • 240 Forks
  32. madebysource/lesshat

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

    • 2.1K Stars
    • 283 Forks
  33. suitcss/suit

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

    • 2.1K Stars
    • 111 Forks
  34. yairEO/fancyInput

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

    • 1.8K Stars
    • 293 Forks
  35. groundworkcss/groundwork

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

    • 1.6K Stars
    • 354 Forks
  36. tylertate/semantic.gs

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

    • 1.7K Stars
    • 298 Forks
  37. mdo/preboot

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

    • 1.7K Stars
    • 195 Forks
    • 1.4K Stars
    • 404 Forks
  38. tj/nib

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

    • 1.5K Stars
    • 234 Forks
  39. sapo/Ink

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

    • 1.3K Stars
    • 228 Forks
  40. joshuagatcke/HTML-KickStart

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

    • 1.2K Stars
    • 243 Forks
    • 1.4K Stars
    • 100 Forks
  41. nathansmith/formalize

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

    • 1.3K Stars
    • 132 Forks
  42. csswizardry/csswizardry-grids

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

    • 1.1K Stars
    • 178 Forks
  43. daneden/Toast

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

    • 1.1K Stars
    • 170 Forks
  44. jenius/roots

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

    • 1.2K Stars
    • 107 Forks
  45. jonikorpi/Frameless

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

    • 1.2K Stars
    • 270 Forks
  46. nathansmith/unsemantic

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

    • 1.0K Stars
    • 151 Forks
  47. fffunction/sassaparilla

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

    • 1.1K Stars
    • 181 Forks
  48. jalxob/cool-kitten

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

    • 1.5K Stars
    • 558 Forks
  49. artofrawr/profoundgrid

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

    • 956 Stars
    • 175 Forks
  50. paranoida/sass-mediaqueries

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

    • 918 Stars
    • 114 Forks
  51. Wolfr/clank

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

    • 936 Stars
    • 95 Forks
  52. heygrady/scss-blend-modes

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

    • 798 Stars
    • 131 Forks
  53. IcaliaLabs/furatto

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

    • 858 Stars
    • 130 Forks
  54. richleland/pygments-css

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

    • 544 Stars
    • 183 Forks
  55. designbyjake/sassline

    Set text on the web to a baseline grid with Sass & rems using a responsive modular-scale. https://sassline.com

    • 729 Stars
    • 61 Forks
  56. 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

    • 702 Stars
    • 99 Forks
  57. matthewhartman/base

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

    • 604 Stars
    • 84 Forks
  58. maxmert/maxmertkit

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

    • 532 Stars
    • 94 Forks
  59. soyjavi/tuktuk

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

    • 564 Stars
    • 129 Forks
    • 445 Stars
    • 120 Forks
  60. 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

    • 508 Stars
    • 70 Forks
  61. csscomb/csscomb

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

    • 664 Stars
    • 55 Forks
  62. gillesbertaux/andy

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

    • 441 Stars
    • 57 Forks
  63. yahoo/debugCSS

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

    • 571 Stars
    • 27 Forks
  64. 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

    • 386 Stars
    • 50 Forks
  65. 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

    • 371 Stars
    • 54 Forks
    • 345 Stars
    • 54 Forks
  66. cmaddux/littlebox

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

    • 551 Stars
    • 32 Forks
  67. jenius/rupture

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

    • 346 Stars
    • 23 Forks
  68. justinhough/Centurion

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

    • 320 Stars
    • 68 Forks
  69. andytlr/cssgrid

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

    • 332 Stars
    • 165 Forks
  70. cburgmer/csscritic

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

    • 308 Stars
    • 15 Forks
  71. TryKickoff/kickoff

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

    • 288 Stars
    • 47 Forks
  72. raphaelgoetter/KNACSS

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

    • 251 Stars
    • 61 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

    • 230 Stars
    • 58 Forks
    • 500 Stars
    • 41 Forks
  74. jenius/axis

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

    • 231 Stars
    • 37 Forks
    • 416 Stars
    • 44 Forks
  75. JohnAlbin/zen-grids

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

    • 230 Stars
    • 42 Forks
  76. csswizardry/beautons

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

    • 204 Stars
    • 23 Forks
  77. weepower/wee

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

    • 196 Stars
    • 7 Forks
    • 166 Stars
    • 14 Forks
  78. 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/

    • 203 Stars
    • 40 Forks
  79. kaelig/hidpi

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

    • 243 Stars
    • 12 Forks
    • 146 Stars
    • 20 Forks
  80. rowanmanning/pigeon

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

    • 149 Stars
    • 7 Forks
    • 112 Stars
    • 8 Forks
  81. devatrox/Sunglass

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

    • 110 Stars
    • 8 Forks
  82. tzi/chewing-grid.css

    A CSS Grid ideal for card listing design like tiles, videos or articles listing. Responsive without media-queries. http://tzi.github.io/chewing-grid.css

    • 47 Stars
    • 5 Forks
  83. atomicpages/skeleton-sass

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

    • 59 Stars
    • 16 Forks
  84. djesse/yaml4-sass

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

    • 56 Stars
    • 13 Forks
  85. Kilian/sencss

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

    • 53 Stars
    • 5 Forks
  86. nico3333fr/ROCSSTI

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

    • 32 Stars
    • 6 Forks
  87. 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
  88. srsgores/sass-boilerplate

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

    • 35 Stars
    • 5 Forks
  89. dreyacosta/xpressio

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

    • 30 Stars
    • 8 Forks
  90. tsi/Salsa

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

    • 46 Stars
    • 3 Forks
  91. Darklg/CSSCommon

    Simple Modular CSS Framework http://csscommon.com

    • 41 Stars
    • 4 Forks
  92. paranoida/simple-ui

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

    • 38 Stars
    • 3 Forks
    • 29 Stars
    • 7 Forks
  93. rowanmanning/cssdb

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

    • 31 Stars
    • 5 Forks
  94. lmc-eu/emerald

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

    • 31 Stars
    • 4 Forks
  95. chrishumboldt/Blueplate

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

    • 30 Stars
    • 4 Forks
  96. 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
  97. rowanmanning/frag

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

    • 26 Stars
    • 3 Forks
  98. tinywall/scrollzip

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

    • 18 Stars
    • 5 Forks
  99. sebnitu/BaseWeb

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

    • 15 Stars
    • 4 Forks
  100. ride-css/ride-css

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

    • 7 Stars
    • 1 Forks
  101. Snugug/toolkit

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

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

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

    • 7 Stars
    • 2 Forks
  103. juanghurtado/flaminwork

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

    • 6 Stars
    • 2 Forks
  104. 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
  105. seelva/seelva

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

    • 2 Stars
    • 1 Forks
  106. tiko2015/snippets

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

    • 4 Stars
    • 0 Forks
  107. kurbmedia/facades

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

    • 3 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. 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
  110. MarkehMe/pure-sass

    Up to date version of Pure Sass generated from Sassinate Pure https://github.com/MarkehMe/pure-sass

    • 1 Stars
    • 0 Forks
  111. MikeBallan/Amazium

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

    • 0 Stars
    • 0 Forks
  112. banquito/naranju

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

    • 0 Stars
    • 0 Forks
    • 1 Stars
    • 0 Forks
  113. Darklg/CSSNormalize

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

    • 0 Stars
    • 0 Forks