I took some time off from this and have now changed the accordion to the one included in Shortcodes Ultimate. The bad news here is that it has exactly the same problem with mobile that the first one did.
The lower parts of the accordion ride over or under the footer content. While I don't have to stick with this one, I am also concerned that this is going to happen to any and all of the other accordions. I have also reached out to the plugin authors, but since there is a pattern I am hoping that you will take another look.
Thank you