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

    • 94K Stars
    • 41K Forks
  2. FortAwesome/Font-Awesome

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

    • 41K Stars
    • 7.0K 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

    • 31K Stars
    • 7.0K Forks
  4. zurb/foundation-sites

    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

    • 23K Stars
    • 5.0K 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/

    • 23K Stars
    • 4.5K Forks
  6. Semantic-Org/Semantic-UI

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

    • 24K Stars
    • 2.8K Forks
  7. necolas/normalize.css

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

    • 20K Stars
    • 4.3K Forks
  8. Dogfalo/materialize

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

    • 17K Stars
    • 2.5K Forks
  9. yahoo/pure

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

    • 13K Stars
    • 1.7K 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/

    • 11K Stars
    • 2.2K Forks
  11. dhg/Skeleton

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

    • 11K Stars
    • 2.0K Forks
  12. twbs/ratchet

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

    • 12K Stars
    • 1.4K Forks
  13. h5bp/Effeckt.css

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

    • 10K Stars
    • 1.5K Forks
    • 7.4K Stars
    • 2.0K Forks
  14. uikit/uikit

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

    • 6.6K Stars
    • 1.3K Forks
  15. Compass/compass

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

    • 6.8K Stars
    • 1.2K Forks
  16. thoughtbot/bourbon

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

    • 7.2K Stars
    • 798 Forks
  17. olton/Metro-UI-CSS

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

    • 4.8K Stars
    • 1.8K Forks
  18. chinchang/hint.css

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

    • 6.4K Stars
    • 611 Forks
  19. joshuaclayton/blueprint-css

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

    • 5.4K Stars
    • 623 Forks
  20. stubbornella/oocss

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

    • 5.1K Stars
    • 683 Forks
  21. alexwolfe/Buttons

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

    • 4.8K Stars
    • 856 Forks
  22. yui/yui3

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

    • 3.3K Stars
    • 1.1K Forks
  23. topcoat/topcoat

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

    • 4.2K Stars
    • 427 Forks
  24. csswizardry/inuit.css

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

    • 4.0K Stars
    • 514 Forks
  25. nathansmith/960-Grid-System

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

    • 3.2K Stars
    • 530 Forks
  26. Huddle/PhantomCSS

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

    • 3.6K Stars
    • 204 Forks
  27. oddbird/susy

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

    • 3.3K Stars
    • 357 Forks
  28. GumbyFramework/Gumby

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

    • 3.0K Stars
    • 522 Forks
  29. mojotech/jeet

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

    • 2.7K Stars
    • 271 Forks
  30. zmoazeni/csscss

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

    • 2.9K Stars
    • 148 Forks
  31. hakimel/Meny

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

    • 2.2K Stars
    • 490 Forks
  32. suitcss/suit

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

    • 2.6K Stars
    • 145 Forks
  33. madebysource/lesshat

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

    • 2.2K Stars
    • 311 Forks
  34. yairEO/fancyInput

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

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

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

    • 1.7K Stars
    • 358 Forks
  36. mdo/preboot

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

    • 1.7K Stars
    • 198 Forks
  37. tj/nib

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

    • 1.6K Stars
    • 242 Forks
    • 1.7K Stars
    • 300 Forks
    • 1.7K Stars
    • 107 Forks
  38. sapo/Ink

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

    • 1.4K Stars
    • 235 Forks
  39. daneden/Toast

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

    • 1.4K Stars
    • 226 Forks
  40. joshuagatcke/HTML-KickStart

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

    • 1.2K Stars
    • 249 Forks
  41. csswizardry/csswizardry-grids

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

    • 1.3K Stars
    • 202 Forks
  42. jenius/roots

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

    • 1.4K Stars
    • 129 Forks
  43. jonikorpi/Frameless

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

    • 1.2K Stars
    • 265 Forks
  44. jalxob/cool-kitten

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

    • 1.5K Stars
    • 546 Forks
  45. nathansmith/formalize

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

    • 1.3K Stars
    • 132 Forks
  46. nathansmith/unsemantic

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

    • 1.1K Stars
    • 163 Forks
  47. paranoida/sass-mediaqueries

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

    • 1.0K Stars
    • 138 Forks
  48. fffunction/sassaparilla

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

    • 1.1K Stars
    • 178 Forks
  49. IcaliaLabs/furatto

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

    • 865 Stars
    • 137 Forks
  50. Wolfr/clank

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

    • 945 Stars
    • 92 Forks
  51. richleland/pygments-css

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

    • 647 Stars
    • 231 Forks
  52. jakegiltsoff/sassline

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

    • 941 Stars
    • 76 Forks
  53. matthewhartman/base

    Base - A Rock Solid, Responsive HTML/CSS Framework built to work on all devices big and small. http://getbase.org

    • 776 Stars
    • 100 Forks
  54. artofrawr/profoundgrid

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

    • 982 Stars
    • 181 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

    • 724 Stars
    • 104 Forks
  56. soyjavi/tuktuk

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

    • 576 Stars
    • 124 Forks
    • 572 Stars
    • 129 Forks
  57. maxmert/maxmertkit

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

    • 527 Stars
    • 90 Forks
  58. 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

    • 523 Stars
    • 61 Forks
  59. cmaddux/littlebox

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

    • 558 Stars
    • 31 Forks
    • 525 Stars
    • 62 Forks
  60. yahoo/debugCSS

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

    • 630 Stars
    • 28 Forks
  61. jenius/rupture

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

    • 506 Stars
    • 30 Forks
  62. heygrady/scss-blend-modes

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

    • 800 Stars
    • 129 Forks
  63. 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

    • 510 Stars
    • 68 Forks
  64. csscomb/csscomb

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

    • 659 Stars
    • 54 Forks
  65. 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

    • 437 Stars
    • 57 Forks
  66. gillesbertaux/andy

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

    • 474 Stars
    • 58 Forks
  67. TryKickoff/kickoff

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

    • 378 Stars
    • 54 Forks
  68. alsacreations/KNACSS

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

    • 319 Stars
    • 78 Forks
  69. justinhough/Centurion

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

    • 323 Stars
    • 66 Forks
  70. cburgmer/csscritic

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

    • 366 Stars
    • 15 Forks
  71. andytlr/cssgrid

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

    • 328 Stars
    • 158 Forks
  72. jenius/axis

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

    • 278 Stars
    • 45 Forks
    • 510 Stars
    • 42 Forks
  73. weepower/wee

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

    • 310 Stars
    • 23 Forks
  74. JohnAlbin/zen-grids

    A Sass module to build responsive grid systems http://zengrids.com

    • 239 Stars
    • 41 Forks
  75. 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

    • 250 Stars
    • 65 Forks
  76. kaelig/hidpi

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

    • 258 Stars
    • 12 Forks
    • 416 Stars
    • 44 Forks
  77. chris-pearce/scally

    Scally is a Sass-based, BEM, OOCSS, responsive-ready, CSS framework that provides you with a solid foundation for building reusable UI's quickly https://twitter.com/scally_fw

    • 259 Stars
    • 20 Forks
  78. 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

    • 159 Stars
    • 25 Forks
  79. 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/

    • 211 Stars
    • 42 Forks
  80. devatrox/Sunglass

    A mixin and functions library for Sass https://github.com/devatrox/Sunglass

    • 126 Stars
    • 10 Forks
  81. csswizardry/beautons

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

    • 208 Stars
    • 25 Forks
    • 175 Stars
    • 13 Forks
    • 149 Stars
    • 21 Forks
  82. atomicpages/skeleton-sass

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

    • 75 Stars
    • 19 Forks
  83. rowanmanning/pigeon

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

    • 150 Stars
    • 7 Forks
  84. BlazeCSS/blaze

    Open Source CSS Framework http://blazecss.com

    • 63 Stars
    • 6 Forks
  85. radogado/natuive

    13 KB feature-rich front-end framework http://radogado.github.io/natuive/

    • 47 Stars
    • 15 Forks
    • 117 Stars
    • 7 Forks
  86. Kilian/sencss

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

    • 53 Stars
    • 5 Forks
  87. rowanmanning/cssdb

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

    • 37 Stars
    • 7 Forks
  88. djesse/yaml4-sass

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

    • 53 Stars
    • 13 Forks
  89. Robdel12/Thumper

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

    • 50 Stars
    • 9 Forks
  90. tsi/Salsa

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

    • 50 Stars
    • 3 Forks
  91. sebnitu/BaseWeb

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

    • 19 Stars
    • 6 Forks
    • 33 Stars
    • 8 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/

    • 42 Stars
    • 5 Forks
  93. srsgores/sass-boilerplate

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

    • 36 Stars
    • 7 Forks
  94. dreyacosta/xpressio

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

    • 30 Stars
    • 10 Forks
  95. Darklg/CSSCommon

    Simple Modular CSS Framework http://csscommon.com

    • 43 Stars
    • 4 Forks
  96. nico3333fr/ROCSSTI

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

    • 34 Stars
    • 5 Forks
  97. lmc-eu/emerald

    Emerald is an opinionated responsive grid system written in LESS http://lmc-eu.github.io/emerald/

    • 35 Stars
    • 3 Forks
  98. ride-css/ride-css

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

    • 17 Stars
    • 2 Forks
  99. chrishumboldt/Blueplate

    A lightweight SASS mixin library and responsive CSS layout engine. https://github.com/chrishumboldt/Blueplate

    • 35 Stars
    • 3 Forks
  100. 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
  101. rowanmanning/frag

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

    • 28 Stars
    • 2 Forks
  102. tinywall/scrollzip

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

    • 19 Stars
    • 5 Forks
  103. perryharlock/my-bootstrap

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

    • 8 Stars
    • 3 Forks
  104. Snugug/toolkit

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

    • 10 Stars
    • 2 Forks
  105. juanghurtado/flaminwork

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

    • 6 Stars
    • 2 Forks
    • 4 Stars
    • 1 Forks
  106. 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
  107. seelva/seelva

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

    • 2 Stars
    • 2 Forks
    • 3 Stars
    • 1 Forks
  108. tiko2015/snippets

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

    • 4 Stars
    • 0 Forks
  109. MikeBallan/Amazium

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

    • 0 Stars
    • 1 Forks
  110. rowanmanning/catchup

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

    • 1 Stars
    • 1 Forks
  111. kurbmedia/facades

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

    • 3 Stars
    • 0 Forks
  112. 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
  113. MarkehMe/pure-sass

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

    • 1 Stars
    • 1 Forks
  114. banquito/naranju

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

    • 1 Stars
    • 0 Forks
    • 1 Stars
    • 0 Forks
  115. igoradamenko/awsm.css

    Simple CSS library for semantic HTML markup https://igoradamenko.github.io/awsm.css/

    • 0 Stars
    • 0 Forks
  116. Darklg/CSSNormalize

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

    • 0 Stars
    • 0 Forks