This example displays a large, red "Hello World welcome to II CSE A!" message centered on a light pink background. The `main` function directly injects an HTML `div` element into the provided container, setting its font size to `115px` via inline styles. It uses no external libraries, relying on plain JavaScript string interpolation and inline CSS for styling. The text color is `#ff6b6b` and the background is `#fdf4f2`, with all elements positioned using text alignment.