# Sanity ID > Component library, design token library, and TailwindCSS v4 configuration for Sanity ID, the brand design system behind the Sanity marketing website and adjacent properties. TailwindCSS v4 is required. Version 1.15.2. Components are imported from individual subpaths — there is no barrel file. 24 components are documented. Every link below is the markdown representation of a page. Drop the `.md` for the same page as HTML. ## Components - [Avatar Stack](https://sanity-id-docs.sanity.build/sanity-id/components/avatar-stack.md): A row of overlapping avatars for showing a group of people compactly. - [Badge](https://sanity-id-docs.sanity.build/sanity-id/components/badge.md): A small inline label for status or metadata, optionally led by an icon. - [Breadcrumbs](https://sanity-id-docs.sanity.build/sanity-id/components/breadcrumbs.md): A navigation trail showing the current page's position in the site hierarchy. - [Button](https://sanity-id-docs.sanity.build/sanity-id/components/button.md): The primary call to action. Renders an `` when given an `href` and a `