Hide Breadcrumbs in Mobile Outputs?

Hi all,

I've been experimenting with CSH calls, and everything is working as expected thanks to Mr. Van Weelden's excellent web page.

I'm not entirely happy with the way breadcrumbs appear on a mobile phone. Is there a way to hide breadcrumbs for this output? I'm using RoboHelp 2015, so I achieved breadcrumbs by adding a placeholder to the Master Page as directed in these forums.

Thanks!

Joe C.