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Package foundation-sites
Short Description The most advanced responsive front-end framework in the world.
License MIT
Homepage https://get.foundation
Informations about the package foundation-sites
Yeti
A CSS-first, native, zero-build layout and styling framework for web designers. By Foundation.
Foundation for Sites 6 users: this repository is now Yeti, the successor to Foundation for Sites. Version 6 continues on the
v6branch with bug fixes, andfoundation-siteson npm keeps publishing 6.x from it. Read the announcement for the full story.
Status
Yeti is at 7.0.0-beta. The class names, attributes and values, markers, public token names and module names are frozen; the stability page has the exact list and what may still move before 7.0.0.
What Yeti is
Yeti gives a designer the structure and the visual system to build a coherent site fast, with markup a human can read and an agent can write. It is one stylesheet:
- CSS-first and native. Container queries, cascade layers, native nesting,
light-dark(),dialog,popover, and scroll-snap do the work that used to need JavaScript or a preprocessor. - Zero build, ever. No Sass, no Node, no bundler required to use it. It composes into your build if you have one, but never demands it. The repository's own
npm run buildconcatenates the source and writes a minified copy beside it; nobody using Yeti has to run it. - Named layouts, not utility soup. Intent-based layout primitives and composed recipes, configured with a few data attributes.
- One token scale. Type and space derive from one base and one ratio at runtime. Change the ratio and the whole system recomputes.
- Accessible by default. Correct focus handling and ARIA on every component, checked in CI.
- Legible to agents. A machine-readable manifest describes every component, and the docs, type hints, and an MCP server are generated from it.
What Yeti is not
Not a web component library. Not a utility framework. Not a build-time system. No polyfills. No full-featured slider in core. Nothing that exists only to work around CSS that no longer needs working around.
Browser support
Yeti targets Baseline 2025. Anything that reached Baseline by the end of 2025 is used without guards; newer features sit behind @supports with a working fallback. If you need to support browsers older than that, Yeti is probably not your tool.
Try it today
The tokens, reset, Layouts guide. Link the unbuilt source and write plain HTML:
Or install the package and follow the installation guide, which also covers editor completion and the llms.txt files for assistants.
Or run the fixtures locally:
Contributing
See Discussions; bugs and proposals go to Issues using the templates.
License
Yeti is released under the Functional Source License 1.1, MIT future license (FSL-1.1-MIT). You can use, copy, modify, and redistribute it for any purpose except offering it as a competing product; each release becomes plain MIT two years after it ships. Foundation for Sites 6 remains MIT.