Thanks vladff! It tried this in a custom css plugin and it only worked for the first menu when scrolling between the main picture and the content. But when scrolling within the content it stays default.
I attached a picture: http://img5.fotos-hochladen.net/uploads/moesiascreenshy4n7blsj0e.jpg
How can I change this height?
@jan Cavan Boulas
My homepage is not online yet.
@ivegte
Thanks for the hint, but I already tried that without success. It is possible to change the height with your css sample, but then the menu and the logo are not vertically in the middle of the grey stripe.