blender-motion-state-inspection
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Use when reviewing stylesheets, component styles, and responsive behavior related to Use transform and opacity for animations. Check the rendered layout across breakpoints and interaction states before proposing a fix.
Animating layout properties (width, height, top, margin) triggers the full browser rendering pipeline on every frame — style recalculation, layout, paint, and composite. This runs on the main thread and competes with JavaScript. Animating transform and opacity skips layout and paint entirely and runs on a dedicated GPU thread, achieving smooth 60fps even when the main thread is busy.
Find CSS animations or transitions in this file that animate layout-triggering properties like top, left, width, height, or margin. Flag them for optimization.
Convert layout-triggering animations to use transform equivalents: position changes to translate(), size changes to scale().
Explain the browser rendering pipeline, why transform and opacity are performant for animation, and how the GPU compositor works.
Review stylesheets, component styles, and responsive states related to Use transform and opacity for animations. Flag exact selectors, declarations, or breakpoints that violate the rule in the rendered UI.
For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.
Rule page: https://frontendchecklist.io/rules/css/animation-performance
AFaffaan-m/ECC278k近 7 天新增 4,046 个 star
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