The box stays blank after you publish? My guess is that your wysiwyg editor is stripping code. I have to disable mine sometimes to incorporate widgets like rafflecopter, tricks with forms, etc. It's no problem for me because I'm a web geek and speak html and have several web developing programs but for most of us- turning off the editor is not really an option.
I have a few questions:
- What is your blog platform?
- What is your banner URL?
- What is your blog URL?
- Is there a current live page that shows the output?
- Are you adding this via a widget/module are hard-coding it into your template
Oh, and did you have a nice Thanksgiving?