Thank you for your answer!
I tried it on my homepage with franz josef. It worked, but there seems to be an issue with the menu bar on the top.
I added 3 sections to my homepage using the HTML Editor. When i load my page using http://www.example.com/#section3 for example then the beginning of #section3 is on the top end of the screen behind the menu strip.
Is there a way to define something like an offset so that it jumps to #section3 with some space to the menu strip on the top?