* [Tailwind CSS v4.2.2](https://github.com/tailwindlabs/tailwindcss) – Utility-first CSS framework for rapidly building custom user interfaces.

* [NHS.UK frontend v10.4.0](https://github.com/nhsuk/nhsuk-frontend) – Codebase for building user interfaces for NHS websites and services.

* [Vanilla Framework v4.46.0](https://github.com/canonical/vanilla-framework) – Extensible CSS framework built with Sass for consistent theming and styling.

* [Oat UI v0.4.2](https://github.com/knadh/oat) – Ultra-lightweight, zero-dependency semantic UI component library for HTML, CSS, and JS with ~8KB footprint.

* [Orbit v1.4.8](https://github.com/zumerlab/orbit) – CSS framework for creating radial layouts and composing complex circular user interfaces using predefined classes.

* [Boosted v1.1.0-ouds-web](https://github.com/Orange-OpenSource/Orange-Boosted-Bootstrap) – Framework based on Bootstrap with a focus on accessibility and ergonomic design.

* [BlueprintUI @blueprintui/compone...](https://github.com/blueprintui/blueprintui) – Framework-agnostic Web Components, themes, layouts, typography, and utilities for building responsive user interfaces.