∞ forever components

UI Micro-interactions

Accordion Expand

Three FAQ panels smoothly expand and collapse with a CSS height transition; a chevron rotates 180 degrees to indicate open state. Auto-cycles as demo.

csslight complexitysubtle motionclick

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When to use it

FAQ sections, product detail pages, settings panels — any context needing collapsible content with clear open/closed affordance.

When not to

Remove auto-cycle timer before shipping in production. Not suitable when all answers must be visible simultaneously.

Working with an AI agent

Every component ships agent-ready metadata. An example instruction for this one:

Change the accent color from #DA3E8C to #C0B459, add a fourth FAQ item with question 'Privacy' and answer 'We never sell your data.', and increase the step interval to 3000ms. Theme: dark tokens live in :root, the light variant in :root[data-theme="light"]; ?theme=light or a {type:'forever:theme'} postMessage switches at runtime.

Safe to edit

  • FAQ data array (data)
  • chevron accent color (#DA3E8C)
  • auto-cycle interval (2200ms)
  • panel background (#211c33)
  • transition duration (.34s cubic-bezier)
  • theme tokens (:root dark defaults + [data-theme=light] overrides)

Keep intact

  • height-to-auto trick via transitionend listener
  • IIFE-equivalent const scoping
  • prefers-reduced-motion guard on loop()
  • visibilitychange pause
  • theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)

Known limitations

  • Auto-cycles by default — remove setInterval loop before production use
  • No aria-expanded on trigger elements — add for full accessibility
  • Panel width capped at 230px max-width; may feel narrow on desktop

accordionexpandfaqchevronui-controlmicrointeractionclick

More UI Micro-interactions components

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  • Notification BellSVG bell swings and rings with a ripple wave on click; a red badge counter pops in with a springy bounce and increments each ring. Auto-cycles every 2…
  • Copy ConfirmCopy icon morphs to a drawn-stroke checkmark with a green button flash and a "Copied!" toast on click; auto-cycles as a demo loop.
  • Swipe Card StackTinder-style draggable card stack — drag the top card left/right to reveal NOPE/LIKE stamps; fling-away animates it off-screen and cycles to the next card.
  • Pull to RefreshA phone-frame mockup with draggable list rows; pulling down reveals a teal arc spinner that fills and rotates, then triggers a skeleton-row flash on release.
  • Tooltip PopHeart icon button springs a mint-green tooltip above it on hover with a cubic-bezier spring pop; click triggers a subtle press-bounce via Web Animations API.