Wow! Thank you, @Pealco! You are the master of code! And because you are the master, and I bow to your genius, I am curious what you think about hiding Blocs when crossing breakpoints. I started another discussion about that last night, but so far I am at a dead end:
SUMMARY: I cannot get Bootstrap 4’s Display Property to work right for some reason. So I guess JavaScript/jQuery code is my only recourse. When I preview in Blocs and click on my 製品 navilink in LG, my complex dropdown displays. But when I click MD, I want that dropdown to be closed automatically – not hidden but closed. That way, when I click LG again, the dropdown should be hidden from view (closed). And since my menu dropdown is different for MD and smaller, I want the same thing to happen on that dropdown Bloc too. When I preview in MD and click the hamburger icon to display the dropdown menu, if I then click LG, that dropdown should auto-close, and when I return to MD, the dropdown should still be hidden (closed). Any thoughts on that would be greatly appreciated.
A THOUSAND THANKS FOR YOUR KIND HELP!