HTML Stripping

I have a very basic need, which I (almost) solved with some very basic html.

The trouble is that when I use this in a product description, the code ends up getting reformated as you see in the link provided.

It should appear as it does on this page (about 1/2 way down)
https://www.coachmansdelight.com/online-learning/live-online-classes/

I’ve tried several form plugins to make a similar dialog, but they are all centered on gathering information from the user, rather than providing information. I have not yet found one that just allows this very basic user interface for a simple answer to a common question.

What do you suggest?

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