On first impression the reasoning seems to be logical to me.

Quote Originally Posted by noeska
Using google i found the following table:
http://sureshjain.wordpress.com/2007/07/06/53/
stating that:
12pt = 16px = 1em = 100%
and 12/72 gives about 0,16666 so that's 16px.
Anyway, I am curious about if the rounding applied is the "correct" one. Usually (but not always) when you round a number in the IT world the rule applied says a fraction of:

- 0,5 or more goes to 1
- less than 0,5 goes to 0

but in this example the fractional part is cut off.