How to solve WP permalinks problem?

Question

css

Hello! Maybe someone can help solve the problem. If the Permalinks setting is set to "Simple", then all pages open. If you put "Post Title", then all pages are redirected to the main page.
Those. I can follow the link of the page my_site/?page_id=6, and the link of the same page, but through the "post title" my_site/reklama redirects to the main page.

Answer 1

https://codepen.io/Slasher_/pen/VQoaxE?editors=1100

Answer 2

If the height of the blocks is set, then you can do something like this:
Example