What did i have to do, that there is a modul no more shown in a mobile device?
I tryed to define a moble.css including .nomobile {display : none}
after this
i deffine in the module / menueclassuffix nomobile

but it isn´t working

Thank you for help

www.gavick.com/documentation/joomla/hide-joomla-module-in-mobile-or-tablet-layout

I solved the Problem:

You have to "Module Class Suffix". Add " hidden-phone" (space is important at the start since some modules don't put it there for you...) to hide for screen sizes less than 767px. Add "hidden-tablet" as well to the list (also separated by a space) if you want to hide it as well for 767px to 979px widths.