✓ 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 — the CSS rotates the range input -90° so dragging toward "WASSER" label actually increases value, but the visual label placement (LUFT at top, WASSER at bottom) implies top=air/bottom=water yet the raw HTML min=0 at top physically maps to the air state, making the intended direction ambiguous; moreover the rotated slider's thumb starts at the left (min=0/air) which after rotation appears at the bottom, meaning bottom=air and top=water — inverted from the spec.
6,775 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted — the CSS rotates the range input -90° so dragging toward "WASSER" label actually increases value, but the visual label placement (LUFT at top, WASSER at bottom) implies top=air/bottom=water yet the raw HTML min=0 at top physically maps to the air state, making the intended direction ambiguous; moreover the rotated slider's thumb starts at the left (min=0/air) which after rotation appears at the bottom, meaning bottom=air and top=water — inverted from the spec.