Wix Restaurant Menus - different menu, different backgrounds?

Hi all!

I’m currently toying around with my Wix Menus - I currently have two menus showing on one page, with headings at the top that switch between each one. My first menu has lots of items, meaning the page length is quite long, but the second menu is very short and I want to shorten the page significantly. Here comes the tricky bit…

With the long page, I want to add more decorative elements and images to it to break up the blank background and text, but when I shorten the page in the second menu, it means I have to delete all of these elements, which then removes them from the first menu (sorry if this is confusing…)

So, my question is: is there some coding that I can do to keep the elements on the first menu and shorten the second one, but still keep the ones nearest the top?

Or, alternatively - what is the maximum size of the website background so that I can create a one and set it as the page background?

I may need to explain this a little better, so forgive me for rambling…

Any help would be greatly appreciated!

Tx