∞ forever components

Primary Grid Compositions

De Stijl Marquee

Two horizontal tracks of De Stijl manifesto words scroll in opposite directions inside colored primary-palette blocks framed by bold black borders.

cssmedium complexitymoderate motion

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When to use it

Art/design-themed hero backgrounds, cultural or editorial layouts, typographic ambient displays referencing modernist aesthetics.

When not to

Contexts requiring legible static text or user interaction — the constant scroll competes with readable content.

Working with an AI agent

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

Change the WORDS array to brand slogans, set C.red to '#FF4500', and increase scroll speed by changing sp from 0.05 to 0.09. 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

  • word list (WORDS array)
  • scroll speed (sp = 0.05)
  • color palette (C object)
  • tile primary ratio (Math.random() < .55)
  • border/bar thickness (7px, 9px)
  • theme tokens (:root dark defaults + [data-theme=light] overrides)

Keep intact

  • IIFE wrapper
  • prefers-reduced-motion guard (REDUCED)
  • visibilitychange stop/start
  • duplicate() seamless-loop clone pattern
  • theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)

Known limitations

  • Block widths are random at paint time — layout differs on every load
  • Requires Archivo Black from system fallback; no Google Fonts import so weight may not render as intended on all devices

marqueetypographyde-stijlprimary-colorsloophorizontal-scroll

More Primary Grid Compositions components

  • The Rebalancing Gridneoplastic grid of black lines slides to new layouts while red, blue, and yellow cells fade in, resolving into a balanced composition every few seconds.
  • Broadway Boogie WoogieColored squares pulse along yellow grid avenues like NYC traffic; intersection dots blink in red, blue, and yellow referencing neoplastic's 1943 painting.
  • Self-Assembling Compositionneoplastic grid builds itself every 4 s: cells scale in staggered, black lines draw outward, primary colors fill random regions, then recomposes anew.
  • Trading WeightRed and blue blocks trade mass across a fixed axis; a yellow counterweight keeps the neoplastic grid balanced. Slow eased transitions reseed randomly.
  • Self-Painting CellsA fixed asymmetric neoplastic grid whose cells autonomously cycle through red, blue, and yellow with smooth CSS transitions, like an unattended painter at…
  • Victory Boogie MarqueeA 9x9 neoplastic grid rotated 45° as a diamond; red, blue, and yellow squares ripple diagonally in a boogie-woogie march via time-stepped index.