Making header non-clickable

I’m putting together my first WP site. I want to have a non-clickable header, but I don’t want that to be an image file. How can I do that?

I want my WP site to look like a regular website with only pages but no posts. When I click on the header now, it links me to a post (which is blank).

I’ve tried searching the forum, etc, but everyone seems to want a clickable header (sigh). Thank you!