✓ 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
Mass, volume, and density values are static (not live-updating), so those three live-value features are absent; only displaced water updates dynamically, and there is no smooth fall animation — the crown teleports via CSS transition rather than animating a drop.
Mass, volume, and density values are static (not live-updating), so those three live-value features are absent; only displaced water updates dynamically, and there is no smooth fall animation — the crown teleports via CSS transition rather than animating a drop.