AI Animation Battle: Money Rain 💸 Which AI did it best? Prompt: Create a single-file with HTML/CSS/vanilla JS only (no libraries/assets) that renders money bills falling from the top inside a centered square scene container. Bills must fall vertically at different speeds, gently rotate, land briefly at the bottom, then fade out. New bills continuously spawn from above. Total loop length: 30 seconds, seamless. Add a Start button below the square that starts the animation when clicked.