RoboHelp HTML 18.104.22.1681.
In my stylesheet, I have <p> classes for notes, tips, examples, and cautions. Each has a background image.
background-position: 0pt 12pt;
The images show in outputs but not in previews, nor in Review PDFs (Review | Create PDF for Review . . .).
Is there a way to make those images appear?
No way that I know of. You have the same problem with printed documentation. The background image's don't show up there either. Please log a bug report with Adobe: https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform&product=38
I logged bug# 3964062 with Adobe.