✓ 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 direction is inverted (CSS rotate(-90deg) with bt-lr writing-mode makes value=0 at bottom/water and value=100 at top/air); no autonomous fall animation — crowns only move when user drags slider.
12,108 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (CSS rotate(-90deg) with bt-lr writing-mode makes value=0 at bottom/water and value=100 at top/air); no autonomous fall animation — crowns only move when user drags slider.