Is it possible to break content into two lines within a margin box?

I have the following:

@top-left {content: "<xsl:text>Service Agreement</xsl:text><xsl:value-of select="$event_name"/>";

But instead of printing out on one line, I'd like it to print:

Service Agreement
<$event_name>

Any formatting I've tried within the content is ignored (<br/>, table structure)

I figure it just isn't possible, but I thought someone here might know for sure.

Thanks!

You can use a new-line character, which has to be escaped in CSS like this:

@top {
    content: "First line\A Second line";
    white-space: pre
}

That did the trick! thanks very much Mike.