stupid question about The Art and Science of CSS book

[decounts5]

ok so I'm reading the Art and Science of CSS and I keep seeing this css code being used to style the body:

font: 62.5%/1.75em

I looked around and I found 62.5% is supposed to set the font in all browsers to 10px, but what does /1.75em after it do? I looked around but nothing seemed to come up. Thanks

-Dave

[drhowarddrfine]

It sets the line-height.

[Tyssen]

I'd do a bit of reading up on setting your body to 62.5% - plenty of arguments out there as to why it's not a good thing.

[decounts5]

I figured it was a simple answer. I'll definitely check out what they say for and against about presetting the text to size 10 by using 62.5%. Thanks for the help!