Foundations
Color
Color is a fundamental piece in the Primer visual language. In this guide you will learn about the principles, patterns, and abstractions that make Primer’s color system.
Responsive
Supporting responsive experiences is an essential part of developing for the Web. Every page and feature at GitHub needs to adapt to the user’s device and their preferences.
CSS utilities
Utilities provide the building blocks for layout and handle a range common use cases that help us avoid writing custom styles.
Layout
GitHub is a diverse and complex platform. These layout guidelines aim to provide a set of standards that enables consistent, accessible, and responsive experiences.
Typography
These guidelines summarize how we use typography at GitHub, and serve as guardrails for designers to design freely with best typographic practices in mind.