RE: CSS Font Sizes and Macs

by =?iso-8859-1?Q?St=E9phane?= Bergeron <stephberg(at)>

 Date:  Fri, 29 Sep 2000 18:56:09 -0400
 To:  hwg-techniques(at)
 References:  bgsgroup ncrel ncrel2
  todo: View Thread, Original
At 06:20 PM 29/09/00 +0000, you wrote:
>At 10:50 29-09-00 -0400, you wrote:
> >On 29/09/2000 at 8:12 AM Michael Heliker wrote:
> >>'s the other way around. Macs display at 72 dpi, and pcs at
> >96.
> >>We did some tests here at work to confirm this.
> >
> >
> >Are you SURE about that?  I always thought it was PC's at 72 and Mac at
> >96...  How did you test this?
>   I am not kidding.
>   Make square image 72px width and height.
>   View it on your Mac.
>   Get a ruler and measure the square on the screen.
>   If it has an inch  vertically and horizontally
>   then the resolution of your screen is 72 dpi.
>   DPI  means  dot per inch -  you can translate it
>   to  pixels per inch.

No you can't... As stated before by someone else on this list, dpi is=20
completely irrelevant to the screen... it's a print concept that has=20
nothing to do with the screen.  You just have to change the resolution of=20
your screen to change the size of the image.  72 points do mean an inch on=
paper but 72px doesn't mean anything in "real world" inches.  Measure your=
72px images at 640x480 resolution then at 1024x768 and beyond if your=20
computer can display it and you'll see that 72 pixels can mean a lot of=20
things but certainly not 1 inch in all situations...

>   And BTW  Mac was probably the first WYSIWYG system
>   which meant:  what (size) you see on the screen
>   should be exactly the same (size and shape) on printout.
>   Windows on PC is not (in this respect) WYSIWYG system.

I don't know where you picked up that strange information but on both Macs=
and PCs, the size you see on the screen has very little to do with what's=20
printed on paper...

St=E9phane Bergeron

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