I've had the chance over the course of the last few days to work with styling an XSLT for some content query webparts.  I plan on writing a bit more about this but for now I thought I'd share something that seems so simple now that I figured it out.

When you're working on an XSLT you can not add a non breaking space by using " " because it will break the XSLT.   Instead you need to use    which is the numerical value of a non breaking space. 

Just another helpful tip from your local imason Interaction Designer.