Hi,
I am working with a modified twenty-twelve theme. For usability reasons i had to deactivate the responsive design. On desktop everything is working fine.
But if you open the site http://www.kinderpsychologe-muenchen.de on a smartphone, the sidebar on the right, which should be sticky and displayed all the time by scrolling down, disappeares, if resizing the browser ( zoom in ). The sidebar is only displayed alltime, if you don't zoom in.
Hopefully one can help... o.O
Regards Rico