How to add banner between every post and below header for WordPress theme


I have two questions.

  1. If i have two banners in the end of the header file how do i get the two block to get closer to the top?

  2. If i would like to have a banner between every post how could i make that happen?

I hope you understand my questions.

Please post your website URL and I will look if there is any solution for that as it depends on each website setup.