Sure! Here's an example of a loading screen implemented as a single HTML file using JavaScript:
Loading...
In this example, the loading screen is styled using CSS to create a centered circle with a rotating border. The JavaScript code inside the script tag simulates a loading process with a delay of 3 seconds (3000 milliseconds) using `setTimeout()`. After the delay, the loading screen is replaced with the game content (displaying "Game loaded!"), where you can implement and display the actual game logic.
Feel free to customize the styles and text to fit your game's design and requirements.