Line Numbering

I know that xml is not about formatting, but I need  to transform some xml
to html that will allow me to put sixty charecters on a line and then break.
I have not seen any discussion on this nor is there anything in the archives
that I could find.  Is this not possible with xslt?  I have XSLT
Programmer's Reference but can not seem to get going in the right direction.


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list