Bootstrap 5 & Material Design UI KIT

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

💳 make your credit card form better in one line of code

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

The Less Formal CSS Framework

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

Vapid is an intentionally simple content management system built on the idea that you can create a custom dashboard without ever leaving the HTML.