What you are seeing is 100% of .8em (em being the size of the font relative to 
font size of the body).  There are three units one should be very careful; They 
are em, px and ex.  px is relative to the device used to view the web; ex is 
the x-height of the font ie the width of the font (in cartesian geometry xy 
units).

Now the size you are seeing is 80% (0.8) of the overall font size.  So you are 
seeing 100% of 80%.

My 2p worth here! and hope it helps.


--- On Fri, 5/28/10, Angela French <afre...@sbctc.edu> wrote:


>
> My css looks like this:
>
> body { font-size:100%; }
>
> p {font-size: .8em;}
> 




      
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