h5bp/Effeckt.css

Health v2 · maintenance only

Flags: no_releases archived

Adoption not part of the score

10811 stars · 1345 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Effeckt.css is a CSS library of performant, hardware-accelerated transitions and animations for UI elements like modals, buttons, list items, and page transitions. It is an archived HTML5 Boilerplate project that is no longer maintained.

Use cases

• add subtle css transitions to modals and dialogs
• animate buttons and list items at 60fps on mobile web
• css page transition effects
• jank-free ui animations using transforms and opacity
• curated set of classy css animation effects

When to choose

• you need lightweight, CSS-only transition effects with no JavaScript dependency
• you target mobile web and need hardware-accelerated, jank-free animations
• you want a curated collection of modal, button, and list item effects to copy from

When to avoid

• you need an actively maintained library with modern browser support
• you want JavaScript-driven or framework-integrated animation (e.g. React Spring, Framer Motion)
• you need effects beyond the curated set, such as complex scroll or physics-based animation

Facets

library · maturity abandoned

animation ui-components css-framework web-development frontend web-design browser cross-platform css-animations transitions mobile-web performance archived

Member repositories

For agents

markdown · JSON · MCP: product_card(name="h5bp/Effeckt.css")