css-motion-designer
Installation
SKILL.md
CSS Motion Designer
Use this skill to design production-ready CSS animation systems for casino games, especially round transitions, inter-round motion loops, and lightweight background effects.
Context Analysis (yui540 motions)
- The motions are authored as pure CSS animations and then screen-recorded.
- Visual rhythm is achieved with discrete stepping and grid-based pattern changes.
- Example motion uses a long sequence string like
0111222333...to encode frame states. - Authoring stack includes React with emotion/styled, but the motion logic itself is CSS-first.
- Motion relies on tight timing control and repeated short loops to build perceived complexity.
- Discrete stepping avoids interpolation blur and preserves pixel/segment clarity.
- Motion reads as “procedural” because pattern state is encoded and cycled, not hand-drawn.
Core Methods Extracted
- Step-based pattern animation.
- Use
steps(n)to create discrete jumps for grid patterns. - Pair
steps(n)withrepeating-linear-gradientto build scan, stripe, and barcode effects.