✓ 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 (value=0 at top renders crowns in air correctly, but the CSS rotates it -90deg so visually the top of the slider maps to value=0/air — actually marginally correct — however the slider has no smooth fall animation, crowns jump linearly with slider position rather than a timed drop sequence.
7,409 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (value=0 at top renders crowns in air correctly, but the CSS rotates it -90deg so visually the top of the slider maps to value=0/air — actually marginally correct — however the slider has no smooth fall animation, crowns jump linearly with slider position rather than a timed drop sequence.