I'll take a look at that file and thank you.
I was working on this while eating lunch and noticed that 3 of the 5 pages were working Like they were supposed to work. The American flag was full size at all breakpoints. (Just the two standard ones and one at 350px.)
I went into the container and viewed the settings for the background image but all 5 pages were set the same.
I created a backup file (#3) and deleted 2 pages that were not working. That was the index and contact page (with an html container and the contact form code in there.).
Then copied one of the working pages and renamed the new ones accordingly.
I'm going to create a completely new file from scratch this evening and see if the BG settings work.
A Rose is Just a Weed in a Corn Patch!