Synchronize CSS animations with HyperFrames for deterministic seeking.
npx skills add https://github.com/alecs5am/ralphy --skill css-animations-alecs5am
Please help me install this Agent Skill. Skill: css-animations Source: https://github.com/alecs5am/ralphy/tree/main/.agents/skills/css-animations Command: npx skills add https://github.com/alecs5am/ralphy --skill css-animations-alecs5am
HyperFrames requires deterministic control of CSS-driven motion to ensure accurate seeking during previews and renders. This Skill provides adapter patterns and practical guidance for authoring CSS keyframes, timing, and motion that can be deterministically replayed.
Apply a finite CSS animation to a single element with a defined duration and data-start value to align with the clip timing.
High-intent search queries and answers about installing and using this skill.
Deterministic CSS animation requires setting a finite animation-duration and explicit data-start values on elements. This synchronizes keyframes with the clip timeline, guaranteeing accurate seeking during previews and renders.
CSS animations drift during seeking when they lack finite duration or explicit data-start attributes. You must define correct animation properties and finite timing to preserve deterministic playback and keep motion synchronized with the clip.
Deterministic CSS animations are best suited for simple one-element entrances, decorative loops like shimmer or glow, masks, and staggered effects. These use cases rely on finite duration and explicit timing to stay consistent across renders.
You do not need JavaScript to drive scene choreography. This approach uses CSS adapter patterns with animation-duration, data-start, and data-track-index properties to synchronize motion directly with the clip timeline for deterministic results.
CSS animations for deterministic rendering require finite animation duration and correct animation properties. Infinite loops or missing data-start values will break synchronization, making this approach unsuitable for complex non-linear choreography.
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