Iconic font aggregator, collection, & patcher. 3,600+ icons, 50+ patched fonts: Hack, Source Code Pro, more. Glyph collections: Font Awesome, Material Design Icons, Octicons, & more

A modern alternative to CSS resets

Modern CSS framework based on Flexbox

Skeleton: A Dead Simple, Responsive Boilerplate for Mobile-Friendly Development

Minimal CSS Framework for semantic HTML

Build mobile apps with simple HTML, CSS, and JavaScript components.

A showcase of problems once hard or impossible to solve with CSS alone, now made trivially easy with Flexbox.

The package of IBM’s typeface, IBM Plex.

Smarter defaults for colors on the web.

A drop-in collection of CSS styles to make simple websites just a little nicer

A CSS only tooltip library for your lovely websites.

A specification for building JSON APIs

Highly customizable checkboxes and radio buttons (jQuery & Zepto)

Pro Git 2nd Edition

A CSS framework that aims to cut down on your CSS development time

The 960 Grid System is an effort to streamline web development workflow.

An open source icon set with 223 marks in SVG, webfont and raster formats

A minimal, responsive, style-agnostic CSS framework!

Build sites fast from Markdown

A detailed document explaining and documenting HTTP/2, the successor to the widely popular HTTP/1.1 protocol

💌 Find the emoji that echoes your mind.

🍟 The definitive front-end performance guide

A simple and attractive code quality tool for CSS built on top of LESS

A simple, modern, browser notification system

Generate HTML5 slideshows from markdown, ReST, or textile

Open-Source Iconfont.

Directory of free Python ebooks

A collection of LESS mixins and variables for writing better CSS.

CSS for making regular HTML look like plain-text markdown.

💬 Minimal, accessible, ultra lightweight css tooltip library. Just 1kb.