Adding HTML for the RS Cel Shop?

I've attempted to add html code into some postings for the RS cel shop, but they were not recognized. I don't have problems when adding the html code into regular cel descriptions... can you advise Jason? Thanks!

HTML is disabled for the shop to prevent malicious Javascript from running. This applies (or should apply) to all public areas as well, such as this forum. Sorry for the inconvenience.

Ok Jason, thanks for clarifying... I couldn't figure out what was wrong.