Enhancement of all the sections of index.html

[Raja6284]

1).In the "three-box" section those three buttons and cursor type can be improved. On clicking those button , those are suppose to show their respective page. But these are not working. 2).All the sections of index.html is of height even more than the desktop but their content is very less. These sections can be improved by applying more beautiful CSS.

So please assign me this task under GSSoC2024 . I will try my best to fully improve this project from these issues.

Thanks!