Background image on one page

I am trying to make a website and I got my “home” page pretty much how i want it(may make small changes later) but now I went to create another page and it has the same background image as my home page. Here is the code pen:

I am have an index.html file as well as a portraits.html file. I don’t know how to make codepen showcase multiple pages and have the links work etc. On the portraits page, I want to keep the same nav bar but I just don’t want the same background image. I want sort of like a “blank slate” on new pages but keep the nav bar. The portraits.html file is the same as the index.html file except I don’t have that paragraph on it.

never mind I got it to work!