Mobile is different from desktop and preview

I’ve tried to see an answer to this without success. I’m seeing the right details on my Mac and the preview for mobile, but when I look at the mobile on my Android I see the latest image I’d inserted to my blog post. I confirm that the pages and posts are all working the way I need them to, but I don’t know which codes to insert into the child CSS or what else I can do to see the right front page.

Thanks so much,

The page I need help with: [log in to see the link]