Good and simple, with flaws

It’s very simple to set up and get started. I’m a total newbie to web creation, so I didn’t want to have to learn CSS or PHP or HTML to get a forum working on my club’s website. This got me there. However, the topic / comment display on the generated page does not inherit the characteristics of the parent page. I’m building this site with Elementor, but the new page inherits the underlying theme, which is problematic.
Back to the drawing (learning) board.