I have a responsive layout where one column is visible only on desktop. There is a skyscraper ad in that div.
On a mobile that column and ad are not visible.
1. Is this legal by Adsense's terms and conditions?
2. Could this harm me by inflating ad-loads when it is not viewable? Dont some browsers still load images, etc in hidden divs? Could these background loads hurt the performance stats and therefore my payouts?
3. If the answer to either question indicates that what I'm doing is wrong, can anyone suggest how to best hide an ad for certain devices in a responsive layout?

Thanks
I didn't find the right solution from the Internet.


References https://www.webmasterworld.com/google_a ... 872167.htm