rodvlopes/elifoot2-web ? reverse-engineered prompt

Build me a web version of Elifoot II that runs in the browser and feels like the classic 90s game. I want the game to load cleanly, show an initial splash screen, and then let me play it directly in the browser through a DOS emulator style setup.

Please make sure save support works too. I want the same keyboard sequence, alt plus f1, then return, then return, to trigger a save to browser storage. If it needs a small backend so the game can keep progress across different browsers or devices, include that too.

Keep the experience simple and focused on getting the game running smoothly, with the save behavior working reliably. If you need to check current docs for the browser emulator setup, feel free to look them up online.