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medium-300-500ms

Use when building standard animations between 300-500ms - page transitions, significant UI changes, animated illustrations that need clear communication

skills/10-by-time-scale/medium-300-500ms/SKILL.md

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# Medium Animations (300-500ms)

The 300-500ms range is **standard animation territory**. Long enough to be watched, short enough to not impede flow. The workhorse duration for meaningful motion.

## Disney Principles at Medium Duration

### All 12 Principles Applicable

**Squash & Stretch**: Full expression - visible deformation for bouncing, elastic elements. 15-25% stretch feels natural.

**Anticipation**: Clear preparation - 80-120ms anticipation before main action. Pull back before push forward.

**Staging**: Multi-element choreography possible - primary action leads, supporting elements follow.