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Ryan Scharfer
Courses Plus Student 12,537 PointsHow the user agent determine what size (in pixels) font-size:small is?
and font-size:large, etc... I am asking beause I was trying to track down the default font-size for the browser which I know to be 16px (but still wanted to see it in the user agent stylesheet), but in the process found the font-size set to "medium". Then my question was: where is does it say font-size:medium is equal to 16px? These keywords are "absolute" values, so I dont they have exact pixel equivalents somewhere?
2 Answers
James Barnett
39,199 PointsLet's check the CSS3 spec to find out shall we:
Ryan Scharfer
Courses Plus Student 12,537 PointsThese seem to me to be all relative sizes and that somewhere down the line, they all have to be based on a size we can all agree on (eg- 1 inch). Where do we find this fixed size we all agree on? In the spec, if I understand it correctly, it says the actual size for each of the keywords is computed and kept by the user agent. How does the user agent compute these values?
James Barnett
39,199 PointsYou can set your standard font size in your font size in your browser preferences. For most browsers that default is usually 16px, so that's probably the absolute size you are thinking of.