Applying Stylesheet to IFRAME contents

[m0nde]

I'm using vbadvanced and have created a module to show information in an IFRAME.
However, the contents of the IFRAME is never formatted according to what I've set up in my style. The contents always has a white background with black text in Times New Roman.

Is there something I'm missing?
I've tried to include a class="alt1" in the IFRAME tag and have even surrounded the contents of the HTML file in <span class="alt1"> tags, all to no avail.

Included is an example:

<td class="$getbgrow alt1" width="100%" align="center">
<iframe title="Text" name="I1" width="100%" height="100" src="/forums/modules/text.html" marginwidth="1" marginheight="1" scrolling="auto" border="0" frameborder="0">
<!-- Alternate content for non-supporting browsers -->
<a href="/forums/modules/text.html" target="_blank">Text</a>
</iframe></td>

The text.html file is a very long page and that is why I want it included in an IFRAME with a scroll bar.

<span class="alt1"><strong>Blah blah blah ...</strong><br /><br />Blah blah blah</span>

- Sid