Hi Ivo!
First please have a look at this site:
http://37.60.241.242/~dekubitu/ratgeber/problematik
I have put the class "uk-hidden-small" for the menu on the left sidebar (Picture "11.png"). But when i go on the site with a mobile device, there is a big blank space above the content (Picture "22.png"). Can you tell me how to avoid this?
Greetings