✓ Two crowns ✓ Same mass, different density ✓ Vertical slider ✓ Slider works ✓ Slider controls crowns — Slider direction correct ✓ Full slider range ✓ Fall animation ✓ Water displacement ✓ Rising water level ✓ Splash effects ✓ Physics correct ✓ Live mass value ✓ Live volume value ✓ Live density value ✓ Live displaced water ✓ Gilded displaces more ✓ Heureka animation ✓ No external deps ✓ Light bg / dark text ✓ Self-contained HTML
Slider is visually rotated via CSS transform but remains a horizontal input internally, so moving it left/right maps to 0→100 meaning "more submerged at the right end" — not a true top=air/bottom=water vertical mapping, making direction semantics inverted relative to spec.
11,085 output tokens · claude-opus-4-6 · end_turn
Slider is visually rotated via CSS transform but remains a horizontal input internally, so moving it left/right maps to 0→100 meaning "more submerged at the right end" — not a true top=air/bottom=water vertical mapping, making direction semantics inverted relative to spec.