I don't want anyone trying to view the left/right columns on a small screen.

Our primary site is responsive, if you visit a page like: https://pianoworld.com/faqs/taking-care-of-your-piano/ using a mobile phone you only get one column and the ads (normally seen in the right column) automatically come up below the content in the one column.

As seen in this screen capture (attached).

Apparently what I'm asking for is outside the scope of the ubb, which means I will need to look at the other options you suggested for displaying ads, as mobile responsiveness is a must these days.

thank you for your help and suggestions.

Best,
Frank B. / Piano World
Attachments
Screenshot_2017-09-28-13-56-40.png