Motion Frames Skill
Produce a single full-bleed motion composition. Inline CSS animations only —
the page is the loop. Treat it as a poster frame that an exporter (HyperFrames,
Lottie, etc.) can capture into a video.
Workflow
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Read the active DESIGN.md (injected above). Motion lives or dies on
typography contrast — pick the most expressive serif / display token in
the DS for the headline; the body / mono token labels everything else.
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Compose the canvas as a 16:9 hero with these layers, back to front:
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Stage — full-bleed
<main>. Off-white or DS-canvas background, very
subtle dotted grid texture (CSS background, radial-gradient dots at
22–32px intervals).
-
Concentric rings — 2–3 SVG circles radiating from a focal point.
Ultra-thin strokes (0.5–1px) in DS-foreground at low opacity. These
rotate at different speeds (60s, 90s, 180s).
-
Focal mark — a wireframe globe, a stylized object, or a typographic
monogram drawn as inline SVG. ~28% of the canvas wide.
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Ring labels — short words / phonetic tokens placed around one of
the rings (e.g. "Hola · Bonjour · 你好 · नमस्ते"). They co-rotate with
the ring, with
<text> paths counter-rotated so the words stay upright.
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Headline — bottom-left or center-bottom. Display serif, italic
accent on one word. Add a subtle
letterSpacing + opacity reveal
animation (@keyframes type-in).
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Frame chrome — corner stamps (top-left lab tag, top-right brand or
issue number) and a thin baseline rule. Static.
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Animate with
@keyframes only — no JS:
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rotate-slow, rotate-med, rotate-fast for rings.
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globe-spin for the focal mark.
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pulse for the focal dot, ~2s, easing.
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marquee-fade to reveal headline once on load.
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Write a single HTML document:
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<!doctype html> through </html>, CSS inline.
- All motion uses CSS — no scripts, so HyperFrames or any frame-grabber
can capture it deterministically.
-
data-od-id on stage, focal, ring, headline, chrome.
-
Self-check:
- The composition still reads as a poster with motion paused at frame 0.
- At least 3 layers move at different speeds (depth comes from delta
velocity, not parallax tricks).
- Accent appears once — usually the italic word in the headline.
Output contract
Emit between <artifact> tags:
<artifact identifier="motion-slug" type="text/html" title="Motion — Title">
<!doctype html>
<html>...</html>
</artifact>
One sentence before the artifact, nothing after.
