Hello,
the reference to the picture has solved the problem.
Thanks for the fast and great support.

I have one last small design question.
I like the demo theme Lifestyle, but I don’t want to install it as a demo.

I want to keep my blog posts in the same style > the
current post big, the older ones in 3 columns below.

I’m playing with the “blog posts” content elements on the startpage, just unfortunately I can’t recreate it.

How did you do it?