✓ 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, but CSS uses writing-mode+rtl which renders the physical top of the slider as the high value=water, making the visual direction opposite to the labeled arrows); otherwise physics, live values, splash, and heureka are all solidly implemented.
Slider direction is inverted (min=0 at top maps to air, but CSS uses writing-mode+rtl which renders the physical top of the slider as the high value=water, making the visual direction opposite to the labeled arrows); otherwise physics, live values, splash, and heureka are all solidly implemented.