Perhaps I don't understand what you say. I assume "the other page" means:
http://qcraft29.epizy.com/index.htmlThat is constructed in exactly the same way as:
http://qcraft29.epizy.com/galleryX.htmland, as with the first page, the forum occupies whatever space is left over given all the other elements of fixed height and position that appear on the page. If you wish to retain them you must, at least, code your page to ensure the forum will display with a scroll bar.
I repeat, this is not a Nabble issue. You need to refer to an HTML/CSS tutorial site for a solution to your problem.
Volunteer Helper - but recommending that users move off the platform!
Once the admin for GregHelp now deleted.