Click to add blocks, right-click to remove
``` This HTML code creates a 3D world where you can: 1. Move around using the mouse and WASD keys 2. Left-click on blocks to add new blocks in front of them 3. Right-click on blocks to remove them The implementation uses Three.js for 3D rendering and includes PointerLockControls for first-person movement. The code maintains the same logic as the original Python code while adapting to the web environment.