Fomantic-UI is the official community fork of Semantic-UI

A game for learning CSS flexbox 🐸

A utility-first CSS framework for rapid UI development.

Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation

Buttons with built-in loading indicators.

Material Design Iconic Font and CSS toolkit

Modern CSS framework based on Flexbox

A JavaScript library to position floating elements and create interactions for them.

AdminLTE - Free admin dashboard template based on Bootstrap 5

Simply beautiful open-source icons

A set of SCSS mixins for single element loaders and spinners

Simple tooltips made of pure CSS

A library for creating dropdowns and other floating elements. #hubspot-open-source

A basic responsive grid for winners. This project is based on Chris Coyier's post on grids http://css-tricks.com/dont-overthink-it-grids/

Material Design Components in HTML/CSS/JS

Ladda buttons concept originally by @hakimel, example using Bootstrap 3 by @msurguy

Some inspiration and modern ideas for subtle hover effects.

Bootstrap 5 & Material Design UI KIT

A beautiful replacement for JavaScript's "alert"

A spinning activity indicator

Simple isometric graphics library for HTML5 canvas

Automatically add a progress bar to your site.

CSS3 Animations with special effects

Pure CSS phones and tablets

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…

Drop-in script to make tables sortable

A modern dialog library which is highly configurable and easy to style. #hubspot-open-source

Data entry can be beautiful

Drag & drop hierarchical list with mouse and touch compatibility (jQuery plugin)

A set of small, responsive CSS modules that you can use in every web project.