apache SSI and failing CSS

Hi,

I am running Apache/2.0.46 on a Red Hat Enterprise Linux AS release 3
system. I am not new to this but i just noticed the following and
wonder if anyone else has seen this?

I have a web page that has a section with an Apache SSI statement
like:

<div class="includes-homepage">
<!--#include virtual="includes/news/newNews.cgi" -->
</div>

This is "working". The CGI script is doing what I asked it to do but
there is some CSS styling that is failing. The script returnes a
simple, validated, HTML page when run stand-alone. It had the
standard complement of DOCTYPE, html, head and body tags. The body
section has simple html tags like: H1, and P with no class names or
embedded styles.

I have a CSS doc that defines the various styles. it has

..includes-homepage DIV {
....
}
..includes-homepage H! [...]
etc

The H1 and P classes seem to work but the DIV class seems to be
forgotten/lost. Do I need to pull the DIV into the script? I don't
really want to because I would then have ti have a script for each
calling instance where the DIV needs a different class name.

I must be missing something. Can you see it?