OT: CSS details

[Fairlight]

This public service announcement was brought to you by Kenneth Brody:
> 
>    Pixel units, as used in the last rule, are relative to the resolution of
>    the canvas, i.e. most often a computer display. If the pixel density of

Yeah, they're relative to the display resolution, but they're absolute
references within that resolution.  I think it was kind of misleading to
define them as relative, since 100px is 100px in, whether you're at 640x480
or 1900x1200 (or whatever that really big one is.  100px is 100px, for all
intents an purposes.

>    the output device is very different from that of a typical computer
>    display, the UA should rescale pixel values. The suggested reference
>    pixel is the visual angle of one pixel on a device with a pixel density
>    of 90dpi and a distance from the reader of an arm's length. For a nominal
>    arm's length of 28 inches, the visual angle is about 0.0227 degrees.

Nice to see they adhere to standards...NOT.  Monitor resolution used to be
72dpi, now it's usually 96dpi.  How they came up with 90dpi is anyone's
guess.

mark->
-- 
"Moral cowardice will surely be written as the cause on the death
certificate of what used to be Western Civilization." --James P. Hogan