✓ 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 (min=0 at top maps to air correctly in labeling, but CSS `direction:rtl` and `style.webkitAppearance='slider-vertical'` are unreliable hacks that can invert behavior cross-browser; no genuine fall animation — crowns teleport linearly rather than falling with gravity.
9,206 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (min=0 at top maps to air correctly in labeling, but CSS `direction:rtl` and `style.webkitAppearance='slider-vertical'` are unreliable hacks that can invert behavior cross-browser; no genuine fall animation — crowns teleport linearly rather than falling with gravity.