Duolingo

Create the world’s best enterprise app experiences.

The Carbon Design System is IBM’s open-source design system for products and experiences.

590 Website Style Guide Resources

Element，一套为开发者、设计师和产品经理准备的基于 Vue 2.0 的桌面端组件库

服务于企业级产品的设计体系，基于确定和自然的设计价值观上的模块化解决方案，让设计者和开发者专注于更好的用户体验。

Material Design is a visual language that synthesizes the classic principles of good design with the innovation of technology and science.