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

    • 116K Stars
    • 54K Forks
  2. FortAwesome/Font-Awesome

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

    • 52K Stars
    • 9.3K 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

    • 45K Stars
    • 10K Forks
  4. ionic-team/ionic

    Build amazing native and progressive web apps with open web technologies. One app running on everything 🎉 https://ionicframework.com/

    • 31K Stars
    • 9.1K Forks
  5. Semantic-Org/Semantic-UI

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

    • 37K Stars
    • 4.1K Forks
  6. callemall/material-ui

    React Components that Implement Google's Material Design. http://www.material-ui.com

    • 29K Stars
    • 5.4K Forks
  7. necolas/normalize.css

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

    • 28K Stars
    • 5.8K Forks
  8. 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

    • 26K Stars
    • 5.7K Forks
  9. Dogfalo/materialize

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

    • 29K Stars
    • 4.2K Forks
  10. jgthms/bulma

    Modern CSS framework based on Flexbox https://bulma.io

    • 20K Stars
    • 1.5K Forks
  11. yahoo/pure

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

    • 17K Stars
    • 1.9K Forks
  12. dhg/Skeleton

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

    • 14K Stars
    • 2.6K Forks
  13. 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. https://designmodo.com/flat-free/

    • 13K Stars
    • 2.4K Forks
  14. twbs/ratchet

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

    • 14K Stars
    • 1.5K Forks
    • 9.5K Stars
    • 2.7K Forks
  15. uikit/uikit

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

    • 10K Stars
    • 1.8K Forks
  16. h5bp/Effeckt.css

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

    • 11K Stars
    • 1.5K Forks
  17. thoughtbot/bourbon

    A Lightweight Sass Tool Set http://bourbon.io

    • 8.3K Stars
    • 919 Forks
  18. Compass/compass

    Compass is no longer actively maintained. Compass is a Stylesheet Authoring Environment that makes your website design simpler to implement and easier to maintain. http://compass-style.org

    • 6.9K Stars
    • 1.2K Forks
  19. chinchang/hint.css

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

    • 7.5K Stars
    • 725 Forks
  20. olton/Metro-UI-CSS

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

    • 5.4K Stars
    • 1.8K Forks
  21. stubbornella/oocss

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

    • 5.7K Stars
    • 732 Forks
  22. alexwolfe/Buttons

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

    • 5.1K Stars
    • 896 Forks
  23. joshuaclayton/blueprint-css

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

    • 5.5K Stars
    • 635 Forks
  24. yui/yui3

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

    • 3.7K Stars
    • 1.3K Forks
  25. Huddle/PhantomCSS

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

    • 4.6K Stars
    • 258 Forks
  26. csswizardry/inuit.css

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

    • 4.0K Stars
    • 497 Forks
  27. topcoat/topcoat

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

    • 4.3K Stars
    • 420 Forks
  28. oddbird/susy

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

    • 3.8K Stars
    • 368 Forks
  29. nathansmith/960-Grid-System

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

    • 3.3K Stars
    • 544 Forks
  30. GumbyFramework/Gumby

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

    • 3.0K Stars
    • 504 Forks
  31. suitcss/suit

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

    • 3.3K Stars
    • 186 Forks
  32. mojotech/jeet

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

    • 3.0K Stars
    • 289 Forks
  33. hakimel/Meny

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

    • 2.3K Stars
    • 492 Forks
  34. madebysource/lesshat

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

    • 2.2K Stars
    • 304 Forks
  35. zmoazeni/csscss

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

    • 2.9K Stars
    • 150 Forks
  36. daneden/Toast

    🍞 A highly-customizable, responsive (S)CSS grid http://daneden.github.io/Toast

    • 1.8K Stars
    • 304 Forks
  37. jalxob/cool-kitten

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

    • 1.5K Stars
    • 524 Forks
  38. sapo/Ink

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

    • 1.9K Stars
    • 285 Forks
  39. groundworkcss/groundwork

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

    • 1.7K Stars
    • 344 Forks
  40. yairEO/fancyInput

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

    • 1.9K Stars
    • 309 Forks
    • 1.7K Stars
    • 296 Forks
  41. tj/nib

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

    • 1.8K Stars
    • 243 Forks
  42. mdo/preboot

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

    • 1.7K Stars
    • 187 Forks
    • 2.0K Stars
    • 137 Forks
  43. joshuagatcke/HTML-KickStart

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

    • 1.2K Stars
    • 249 Forks
  44. paranoida/sass-mediaqueries

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

    • 1.2K Stars
    • 165 Forks
    • 1.2K Stars
    • 198 Forks
  45. csswizardry/csswizardry-grids

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

    • 1.4K Stars
    • 204 Forks
  46. nathansmith/unsemantic

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

    • 1.3K Stars
    • 165 Forks
  47. richleland/pygments-css

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

    • 833 Stars
    • 314 Forks
  48. jescalan/roots

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

    • 1.5K Stars
    • 134 Forks
  49. jakegiltsoff/sassline

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

    • 1.3K Stars
    • 96 Forks
  50. BlazeCSS/blaze

    Open Source CSS Toolkit http://blazecss.com

    • 1.2K Stars
    • 116 Forks
  51. nathansmith/formalize

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

    • 1.3K Stars
    • 133 Forks
  52. artofrawr/profoundgrid

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

    • 1.0K Stars
    • 178 Forks
  53. matthewhartman/base

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

    • 995 Stars
    • 119 Forks
  54. fffunction/sassaparilla

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

    • 1.0K Stars
    • 174 Forks
  55. igoradamenko/awsm.css

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

    • 881 Stars
    • 50 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

    • 743 Stars
    • 103 Forks
  57. heygrady/scss-blend-modes

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

    • 818 Stars
    • 127 Forks
  58. jonikorpi/Frameless

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

    • 1.2K Stars
    • 246 Forks
  59. IcaliaLabs/furatto

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

    • 860 Stars
    • 128 Forks
    • 688 Stars
    • 45 Forks
  60. gillesbertaux/andy

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

    • 578 Stars
    • 77 Forks
  61. 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

    • 628 Stars
    • 62 Forks
  62. soyjavi/tuktuk

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

    • 569 Stars
    • 121 Forks
    • 592 Stars
    • 76 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

    • 547 Stars
    • 72 Forks
  64. csscomb/csscomb

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

    • 646 Stars
    • 48 Forks
  65. maxmert/maxmertkit

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

    • 513 Stars
    • 84 Forks
  66. Wolfr/clank

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

    • 934 Stars
    • 88 Forks
  67. 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

    • 515 Stars
    • 74 Forks
  68. alsacreations/KNACSS

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

    • 408 Stars
    • 97 Forks
  69. justinhough/Centurion

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

    • 329 Stars
    • 64 Forks
  70. static-dev/axis

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

    • 324 Stars
    • 46 Forks
  71. eliortabeka/tootik

    A pure CSS/SCSS/LESS Tooltips library. Super easy to use, No JavaScript required. https://eliortabeka.github.io/tootik/

    • 452 Stars
    • 90 Forks
  72. 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

    • 294 Stars
    • 22 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

    • 258 Stars
    • 63 Forks
  74. andytlr/cssgrid

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

    • 329 Stars
    • 147 Forks
  75. cmaddux/littlebox

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

    • 559 Stars
    • 31 Forks
    • 408 Stars
    • 16 Forks
    • 498 Stars
    • 38 Forks
  76. TryKickoff/kickoff

    :basketball: A lightweight front-end framework for creating scalable, responsive sites. Version 8 has just been released! http://trykickoff.com

    • 427 Stars
    • 61 Forks
    • 417 Stars
    • 44 Forks
  77. csswizardry/beautons

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

    • 211 Stars
    • 21 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. https://github.com/kanthvallampati/IVORY

    • 199 Stars
    • 43 Forks
  79. kaelig/hidpi

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

    • 260 Stars
    • 11 Forks
    • 334 Stars
    • 23 Forks
    • 178 Stars
    • 14 Forks
  80. JohnAlbin/zen-grids

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

    • 247 Stars
    • 38 Forks
  81. atomicpages/skeleton-sass

    Skeleton Sass is a highly modular version of Skeleton CSS https://atomicpages.github.io/skeleton-sass/

    • 120 Stars
    • 29 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

    • 176 Stars
    • 27 Forks
  83. devatrox/Sunglass

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

    • 125 Stars
    • 11 Forks
  84. slavanga/baseguide

    Lightweight and robust CSS framework for prototyping and production code. http://basegui.de

    • 84 Stars
    • 12 Forks
  85. radogado/natuive

    ~15 KB feature-rich front-end framework http://radogado.github.io/natuive/

    • 82 Stars
    • 15 Forks
    • 148 Stars
    • 22 Forks
  86. rowanmanning/pigeon

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

    • 147 Stars
    • 6 Forks
    • 117 Stars
    • 7 Forks
  87. djesse/yaml4-sass

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

    • 49 Stars
    • 12 Forks
  88. Darklg/CSSCommon

    Simple Modular CSS Framework http://csscommon.com

    • 48 Stars
    • 4 Forks
  89. lmc-eu/emerald

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

    • 39 Stars
    • 3 Forks
  90. rowanmanning/cssdb

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

    • 50 Stars
    • 10 Forks
  91. Robdel12/Thumper

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

    • 49 Stars
    • 10 Forks
  92. srsgores/sass-boilerplate

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

    • 42 Stars
    • 12 Forks
  93. Kilian/sencss

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

    • 52 Stars
    • 4 Forks
  94. paranoida/simple-ui

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

    • 45 Stars
    • 7 Forks
  95. tsi/Salsa

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

    • 49 Stars
    • 3 Forks
  96. nico3333fr/ROCSSTI

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

    • 45 Stars
    • 5 Forks
  97. dreyacosta/xpressio

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

    • 31 Stars
    • 10 Forks
  98. chrishumboldt/Rocket-Propel

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

    • 43 Stars
    • 4 Forks
    • 34 Stars
    • 7 Forks
  99. bantikyan/icheck-bootstrap

    Pure css checkboxes and radio buttons for Twitter Bootstrap. https://github.com/bantikyan/icheck-bootstrap

    • 13 Stars
    • 4 Forks
  100. sebnitu/BaseWeb

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

    • 25 Stars
    • 6 Forks
  101. 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
  102. rowanmanning/frag

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

    • 27 Stars
    • 3 Forks
  103. tinywall/scrollzip

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

    • 19 Stars
    • 5 Forks
  104. ride-css/ride-css

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

    • 21 Stars
    • 3 Forks
  105. groenroos/bulma-stylus

    A Stylus translation of a modern CSS framework based on Flexbox https://github.com/groenroos/bulma-stylus

    • 15 Stars
    • 2 Forks
  106. perryharlock/my-bootstrap

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

    • 6 Stars
    • 3 Forks
  107. Snugug/toolkit

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

    • 9 Stars
    • 1 Forks
    • 7 Stars
    • 2 Forks
    • 7 Stars
    • 2 Forks
  108. MarkehMe/pure-sass

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

    • 4 Stars
    • 2 Forks
  109. juanghurtado/flaminwork

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

    • 7 Stars
    • 1 Forks
  110. seelva/seelva

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

    • 2 Stars
    • 2 Forks
  111. 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
  112. tiko2015/snippets

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

    • 4 Stars
    • 0 Forks
  113. watchtowerdigital/scarab-carapace

    Highly configurable framework for generating single-purpose, functional CSS classes https://github.com/watchtowerdigital/scarab-carapace

    • 2 Stars
    • 0 Forks
  114. 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
  115. 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
    • 2 Stars
    • 0 Forks
  116. MikeBallan/Amazium

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

    • 0 Stars
    • 1 Forks
  117. kurbmedia/facades

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

    • 3 Stars
    • 0 Forks
    • 1 Stars
    • 0 Forks
  118. Darklg/CSSNormalize

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

    • 0 Stars
    • 0 Forks
  119. banquito/naranju

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

    • 1 Stars
    • 0 Forks