A collection of CSS3 powered hover effects to be applied to links, buttons, logos, SVG, featured images and so on. Easily apply to your own elements, modify or just use for inspiration. Available i…

NES-style CSS Framework | ファミコン風CSSフレームワーク

Selectize is the hybrid of a textbox and <select> box. It's jQuery based, and it has autocomplete and native-feeling keyboard navigation; useful for tagging, contact lists, etc.

Official Sass port of Bootstrap 2 and 3.

Primer is GitHub's design system. This is the CSS implementation

CSS3 Animations with special effects

Tasty CSS-animated Hamburgers

The U.S. Web Design System helps the federal government build fast, accessible, mobile-friendly websites.

Pre-grid responsive layout toolkit for Sass, now deprecated

A simple, beautiful Jekyll theme that's mobile first

A JS-independent, tree-shakeable CSS framework for building faithful recreations of the Windows 7 UI.

Minimal Jekyll theme for storytellers