# foundation/motion-ui

💎 The powerful Sass library for creating CSS transitions and animations

Repository: https://github.com/foundation/motion-ui
Canonical: https://ross.abutalabs.com/products/motion-ui
Homepage: https://zurb.com/playground/motion-ui
Language: SCSS
License: MIT
License Family: permissive
Last push: 2024-09-26T21:51:12+00:00

## Health v2 (maintenance only)
Score: 34/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 40, longevity 100
- inputs: {"age_days": 4185, "days_push": 706, "days_rel": 706, "gap_med": 0.0, "n_releases_24m": 3}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1167, forks 169 (observed 2026-08-28T04:03:50.403915+00:00)

## What it is
Motion UI is a standalone Sass library for creating flexible CSS transitions and animations, originally bundled with Foundation for Apps and used by Foundation for Sites. It ships pre-built effect classes (slide, fade, spin, scale, hinge) plus a small JavaScript helper to trigger transitions programmatically.

## Use cases
- animate modals and overlays in and out
- add slide and fade transitions to off-canvas menus
- create custom CSS animation effects with Sass mixins
- add micro-interactions to a Foundation for Sites project
- trigger enter/exit animations from JavaScript with callbacks

## When to choose
- you use Sass and want customizable CSS transitions without a heavy JS animation framework
- you are building with Foundation for Sites and need consistent motion effects
- you want lightweight pre-built animation classes plus a tiny JS trigger library

## When to avoid
- you need physics-based or JavaScript-driven complex animations like GSAP or Framer Motion
- your project does not use Sass and the pre-compiled CSS classes are not enough
- you need modern CSS animation tooling with active development

## Facets
- artifact type: library
- maturity: maintenance
- function: animation, ui-components, css-framework
- domain: web-development, frontend, web-design
- platform: cross-platform
- tags: sass, scss, css-transitions, css-animations, foundation, zurb, web-server, nodejs

## Member repositories
- foundation/motion-ui (main) score 34

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:50.403915+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:28:51.451008+00:00, confidence not recorded.
  - readme: https://github.com/foundation/motion-ui (fetched 2026-08-28T04:03:50.403915+00:00, sha 2bba6833dc56)
  - homepage: https://zurb.com/playground/motion-ui (fetched 2026-08-29T12:34:53.924809+00:00, sha 7ffc1a0f1972)
  - site_page: https://zurb.com/about (fetched 2026-08-29T12:34:53.934007+00:00, sha a89a958d772b)
- Data as of 2026-08-30T08:39:29.467469+00:00.