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…

Bootstrap 5 & Material Design UI KIT

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.

The CSS design system that powers GitHub

Standards for developing consistent, flexible, and sustainable HTML and CSS.

CSS3 Animations with special effects

The front-end CSS framework for building experiences for Office and Microsoft 365.

A boilerplate for Sass projects using the 7-1 architecture pattern from Sass Guidelines.

A meaningful web typography starter kit.

CSS framework for dummies, without a single CSS class: nicely renders properly formatted HTML5 pages

This CSS file intends to warn developers about possible risks and mistakes that exist in HTML code. It can also be used to roughly evaluate a site's quality by simply including it as an external st…

Set text on the web to a baseline grid with Sass & rems using a responsive modular-scale.

Pretty basic theme for Hugo that covers all of the essentials. All you have to do is start typing!

Firefox’s Photon Design System.

📏 Explore CSS lengths.

Gengo Style Guide