Height/Width of Font (does line-height affect font appearance)

Does the line-height attribute actually affect the vertical size of 
the font?  If not, does the font-size refer to the vertical size and 
the width is chosen based on the glyph definition?

Everything appears to just refer to font-size, except for the 
shorthand "font" which has line-height grouped in, which makes we 
wonder if it affects the font size at all.

| Mortar: Advanced Web Development <http://bigpic.com/mortar/>
| Neil St.Laurent  neil@bigpic.com
| Big Picture Multimedia