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

    • 72K Stars
    • 27K Forks
  2. zurb/foundation

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

    • 18K Stars
    • 4.0K Forks
  3. daneden/animate.css

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

    • 16K Stars
    • 3.5K Forks
  4. necolas/normalize.css

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

    • 13K Stars
    • 2.9K Forks
  5. driftyco/ionic

    Advanced HTML5 Mobile App Framework. A beautiful front-end framework for developing hybrid mobile apps in HTML5. Best friends with AngularJS. http://ionicframework.com/

    • 10K Stars
    • 1.3K Forks
  6. Semantic-Org/Semantic-UI

    Semantic empowers designers and developers by creating a shared vocabulary for UI. http://www.semantic-ui.com

    • 9.8K Stars
    • 1.1K Forks
  7. twbs/ratchet

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

    • 9.9K Stars
    • 1.0K Forks
  8. yahoo/pure

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

    • 9.5K Stars
    • 1.2K Forks
  9. 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/

    • 8.3K Stars
    • 1.6K Forks
  10. h5bp/Effeckt.css

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

    • 9.0K Stars
    • 1.3K Forks
  11. Compass/compass

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

    • 5.8K Stars
    • 1.1K Forks
    • 4.8K Stars
    • 1.1K Forks
  12. olton/Metro-UI-CSS

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

    • 3.8K Stars
    • 1.4K Forks
  13. joshuaclayton/blueprint-css

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

    • 5.3K Stars
    • 579 Forks
  14. dhg/Skeleton

    Skeleton: A Beautiful Boilerplate for Responsive, Mobile-Friendly Development www.getskeleton.com

    • 4.5K Stars
    • 903 Forks
  15. thoughtbot/bourbon

    A simple and lightweight mixin library for Sass. http://bourbon.io

    • 4.7K Stars
    • 519 Forks
  16. stubbornella/oocss

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

    • 4.3K Stars
    • 588 Forks
  17. uikit/uikit

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

    • 3.5K Stars
    • 611 Forks
  18. topcoat/topcoat

    CSS for clean and fast web apps topcoat.io

    • 3.9K Stars
    • 415 Forks
  19. csswizardry/inuit.css

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

    • 3.7K Stars
    • 543 Forks
  20. alexwolfe/Buttons

    A CSS button library built using Sass and Compass http://alexwolfe.github.io/Buttons/

    • 3.3K Stars
    • 621 Forks
  21. yui/yui3

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

    • 2.7K Stars
    • 901 Forks
  22. chinchang/hint.css

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

    • 3.0K Stars
    • 388 Forks
  23. nathansmith/960-Grid-System

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

    • 2.8K Stars
    • 451 Forks
  24. GumbyFramework/Gumby

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

    • 2.6K Stars
    • 453 Forks
  25. zmoazeni/csscss

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

    • 2.7K Stars
    • 138 Forks
  26. hakimel/Meny

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

    • 1.9K Stars
    • 441 Forks
  27. Huddle/PhantomCSS

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

    • 2.3K Stars
    • 126 Forks
  28. ericam/susy

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

    • 2.1K Stars
    • 224 Forks
  29. jalxob/cool-kitten

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

    • 1.5K Stars
    • 569 Forks
  30. yairEO/fancyInput

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

    • 1.7K Stars
    • 268 Forks
  31. madebysource/lesshat

    Smart LESS CSS mixins library. lesshat.com

    • 1.7K Stars
    • 241 Forks
  32. groundworkcss/groundwork

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

    • 1.5K Stars
    • 334 Forks
  33. tylertate/semantic.gs

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

    • 1.6K Stars
    • 284 Forks
    • 1.3K Stars
    • 358 Forks
  34. mdo/preboot

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

    • 1.6K Stars
    • 191 Forks
  35. mojotech/jeet

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

    • 1.6K Stars
    • 163 Forks
  36. mojotech/jeet

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

    • 1.6K Stars
    • 163 Forks
  37. suitcss/suit

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

    • 1.5K Stars
    • 80 Forks
  38. jonikorpi/Frameless

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

    • 1.2K Stars
    • 255 Forks
  39. visionmedia/nib

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

    • 1.2K Stars
    • 191 Forks
  40. sapo/Ink

    An HTML5/CSS3 framework used at SAPO for fast and efficient website design and prototyping https://github.com/sapo/Ink

    • 1.1K Stars
    • 204 Forks
  41. sapo/Ink

    An HTML5/CSS3 framework used at SAPO for fast and efficient website design and prototyping https://github.com/sapo/Ink

    • 1.1K Stars
    • 204 Forks
  42. joshuagatcke/HTML-KickStart

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

    • 1.1K Stars
    • 243 Forks
  43. fffunction/sassaparilla

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

    • 1.0K Stars
    • 180 Forks
  44. nathansmith/formalize

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

    • 1.3K Stars
    • 123 Forks
    • 1.1K Stars
    • 65 Forks
  45. daneden/Toast

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

    • 880 Stars
    • 154 Forks
  46. nathansmith/unsemantic

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

    • 881 Stars
    • 128 Forks
  47. jenius/roots

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

    • 1.0K Stars
    • 83 Forks
  48. csswizardry/csswizardry-grids

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

    • 836 Stars
    • 140 Forks
  49. IcaliaLabs/furatto

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

    • 814 Stars
    • 118 Forks
  50. paranoida/sass-mediaqueries

    It is a collection of useful media queries mixins for Sass. Great extension for compass or bourbon. http://paranoida.github.com/sass-mediaqueries/

    • 720 Stars
    • 87 Forks
  51. Wolfr/clank

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

    • 920 Stars
    • 87 Forks
  52. 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

    • 658 Stars
    • 95 Forks
  53. heygrady/scss-blend-modes

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

    • 798 Stars
    • 136 Forks
  54. csscomb/csscomb

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

    • 684 Stars
    • 56 Forks
  55. richleland/pygments-css

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

    • 397 Stars
    • 154 Forks
  56. maxmert/maxmertkit

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

    • 505 Stars
    • 89 Forks
  57. soyjavi/tuktuk

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

    • 525 Stars
    • 113 Forks
  58. 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

    • 486 Stars
    • 68 Forks
  59. 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/

    • 451 Stars
    • 70 Forks
    • 417 Stars
    • 40 Forks
  60. designbyjake/sassline

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

    • 356 Stars
    • 30 Forks
    • 289 Stars
    • 49 Forks
    • 491 Stars
    • 40 Forks
  61. 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

    • 304 Stars
    • 36 Forks
  62. andytlr/cssgrid

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

    • 343 Stars
    • 175 Forks
  63. 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

    • 226 Stars
    • 37 Forks
  64. JohnAlbin/zen-grids

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

    • 214 Stars
    • 37 Forks
  65. 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/

    • 200 Stars
    • 38 Forks
  66. yahoo/debugCSS

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

    • 270 Stars
    • 15 Forks
  67. raphaelgoetter/KNACSS

    simple and lightweight CSS framework http://www.knacss.com

    • 178 Stars
    • 34 Forks
  68. cburgmer/csscritic

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

    • 217 Stars
    • 7 Forks
  69. 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. www.responsiveboilerplate.com

    • 205 Stars
    • 49 Forks
    • 142 Stars
    • 39 Forks
  70. tmwagency/kickoff

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

    • 174 Stars
    • 29 Forks
  71. kaelig/hidpi

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

    • 226 Stars
    • 11 Forks
  72. jenius/axis

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

    • 144 Stars
    • 31 Forks
    • 141 Stars
    • 12 Forks
  73. csswizardry/beautons

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

    • 188 Stars
    • 22 Forks
    • 134 Stars
    • 16 Forks
  74. jenius/rupture

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

    • 120 Stars
    • 6 Forks
  75. rowanmanning/pigeon

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

    • 153 Stars
    • 8 Forks
  76. devatrox/Sunglass

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

    • 107 Stars
    • 8 Forks
    • 105 Stars
    • 7 Forks
  77. atomicpages/skeleton-sass

    Skeleton SASS - A vanilla SASS and Compass translation of Dave Gamache's Skeleton responsive CSS frontend framework http://atomicpages.github.io/skeleton-sass/

    • 40 Stars
    • 12 Forks
  78. djesse/yaml4-sass

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

    • 56 Stars
    • 13 Forks
  79. Robdel12/Thumper

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

    • 50 Stars
    • 8 Forks
  80. Kilian/sencss

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

    • 52 Stars
    • 4 Forks
  81. srsgores/sass-boilerplate

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

    • 26 Stars
    • 3 Forks
  82. dreyacosta/xpressio

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

    • 24 Stars
    • 6 Forks
  83. paranoida/simple-ui

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

    • 33 Stars
    • 3 Forks
  84. tsi/Salsa

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

    • 42 Stars
    • 4 Forks
  85. Darklg/CSSCommon

    Simple Modular CSS Framework. http://csscommon.com

    • 40 Stars
    • 4 Forks
  86. lmc-eu/emerald

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

    • 26 Stars
    • 4 Forks
  87. chrishumboldt/Blueplate

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

    • 20 Stars
    • 3 Forks
  88. 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
    • 2 Forks
  89. nico3333fr/ROCSSTI

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

    • 28 Stars
    • 2 Forks
  90. rowanmanning/frag

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

    • 24 Stars
    • 3 Forks
  91. weepower/wee

    Your blueprint for modern web development. www.weepower.com

    • 26 Stars
    • 1 Forks
    • 22 Stars
    • 3 Forks
  92. rowanmanning/cssdb

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

    • 25 Stars
    • 1 Forks
  93. tinywall/scrollzip

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

    • 16 Stars
    • 4 Forks
  94. Snugug/toolkit

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

    • 10 Stars
    • 3 Forks
  95. Snugug/toolkit

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

    • 10 Stars
    • 3 Forks
  96. juanghurtado/flaminwork

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

    • 5 Stars
    • 2 Forks
  97. perryharlock/my-bootstrap

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

    • 6 Stars
    • 1 Forks
  98. 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
  99. seelva/seelva

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

    • 2 Stars
    • 1 Forks
  100. tiko2015/snippets

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

    • 4 Stars
    • 0 Forks
    • 1 Stars
    • 1 Forks
  101. 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
  102. kurbmedia/facades

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

    • 3 Stars
    • 0 Forks
  103. Darklg/CSSNormalize

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

    • 0 Stars
    • 0 Forks
  104. 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

    • 1 Stars
    • 0 Forks
    • 0 Stars
    • 0 Forks
  105. MikeBallan/Amazium

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

    • 0 Stars
    • 0 Forks
  106. banquito/naranju

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

    • 0 Stars
    • 0 Forks
  107. airen/sassCore

    基础的sass,包括常用reset, mixin, grids, typo, css3, media queries https://github.com/airen/sassCore

    • 1 Stars
    • 0 Forks