The descriptions below are from my experiences.. :-)
<textarea>CODE HERE</textarea>
This code is problematic when used at imvu.
The code above, is a very basic version, but you can add size parameters and some other properties to the resulting textbox/area.
The code I was using in this description became quite long:
<center>
<textarea rows="7" cols="58" readonly="readonly" name="WKKBannerCode" title="WKK Banner Code for copying"><center>
<a href="http://www.imvu.com/catalog/index.php?manufacturers_id=7015570" target="_blank">
<img src="http://i32.tinypic.com/1zoukvn.png" border="0" alt="WitchyKat's Kloset" title="Step into the kloset!"></a><BR><FONT SIZE="1" FACE= "arial"><A HREF="http://tinypic.com/"> <FONT COLOR="white"> the above Banner is hosted at TINYPIC</a></FONT></center>
</textarea>
</center>
The closer tag for the textarea command seems to get lost when saving in the custom css box; and in my case, all the text I had after it too.
If using this code, you must re-add the lost textarea closer tag every time you edit that particular custom css box.
To obtain the correct code, you can go into safe mode and copy the code shown on the page BEFORE you even open the custom css box for editing.
BE AWARE!! If this missing textarea closer tag is not corrected, the page could become UNLOADABLE (gets stuck in a loading loop) in edit and preview modes and maybe safe mode too.
I think my page went unloadable because I had a table closing tag which was lost with the textarea closer. And because I had the offending code in the very first panel, (the About Me panel) it would never actually finish loading that first panel, and thus never get to loading the rest of the homepage either..
EXAMPLE:-
1. Edit custom css
2. Put in textarea code
3. Save custom css
4. Page displays with textarea somewhat correctly (*see below)
5. Edit custom css again
6. THE TEXTAREA CLOSER DISAPPEARS AT THIS POINT..
7. Edit custom css, REMEMBERING TO REPLACE TEXTAREA CLOSER TAG.
8. Save custom css
--repeats from step 4.--
So pay extra attention to your actions when editing your imvu homepage with this code in a panel.
Get the rest of your homepage done first, and put the textarea code in LAST, if you can.
I have once had to use google's cached webpage service to obtain an older version of my page (before I had put the code in) in order to get back some lost codes that a failure to fix the dropped textarea closer tag had caused.. (Google search for your imvu username, and go to the CACHED page, and view the page's source file. If all goes well you *should* then be able to retrieve older codes from your page, from within the source text..)
**In addition to the above mess, the code also had a tendency to make surrounding areas display incorrectly. For me, the text which I had put in after the textarea closer tag, was then displaying twice on my homepage...but this was only visible to me when logged in; if I viewed my page when logged out, the text was only showing once, as it was meant to be.
I have dared not use it on a product page, that has no safe mode; do that at your own risk I guess.