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css-animations

๐ŸŽฏSkill

from heygen-com/hyperframes

VibeIndex|
What it does
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A CSS Animations adapter skill for HyperFrames, the open-source HTML-to-video rendering framework by HeyGen. Enables AI coding agents to use CSS animations and keyframes within HyperFrames video compositions.

Overview

The css-animations skill is a HyperFrames adapter that teaches AI agents how to write CSS keyframe animation patterns compatible with HyperFrames video rendering. Standard CSS animations run on wall-clock time, making them non-deterministic during frame capture. This skill provides patterns that let HyperFrames discover, pause, and seek CSS animations frame-by-frame.

Key Features

  • CSS @keyframes patterns that HyperFrames can automatically discover and control during frame-accurate rendering
  • Seekable animation techniques where HyperFrames pauses and steps through CSS animations at each captured frame
  • Works alongside other adapters (GSAP, Anime.js, Lottie, Three.js, WAAPI) for mixed-runtime compositions
  • Integrates with the HyperFrames dev-loop: init, preview, lint, and render to MP4
  • Deterministic rendering where identical inputs always produce identical video output

Who is this for?

  • Developers who prefer pure CSS animations over JavaScript libraries when building HyperFrames compositions
  • AI agent users who need CSS keyframe animations to render correctly in the frame capture pipeline
  • Teams wanting lightweight, dependency-free animations within automated video pipelines
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Same repository

heygen-com/hyperframes(48 items)

css-animations

Installation

Vibe Index InstallInstalls to .claude/skills/
npx vibeindex add heygen-com/hyperframes --skill css-animations
skills.sh Installโš  Installs to .agents/skills/
npx skills add heygen-com/hyperframes --skill css-animations
Manual InstallCopy SKILL.md content and save to the path below
~/.claude/skills/css-animations/SKILL.md

SKILL.md

73,306Installs
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AddedApr 30, 2026

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