I’m a designer who is new to Webflow and I put a few banner ads I’d designed on my portfolio site. The images showed up on preview but not on my published site. I could not, for the life of me, figure out what I had done to make them not appear. Then, I realized they showed up if I removed the class name (“banner ad”) and it hit me… my ad blocker was blocking them. Duh! I’m posting here so the next person who has this problem hopefully finds my post and doesn’t tear their hair out like I did!