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Re: FW: Making pt a non-physical unit

From: Robert O'Callahan <robert@ocallahan.org>
Date: Thu, 7 Jan 2010 12:08:50 +1300
Message-ID: <11e306601001061508r26f6799v818cb0047d0c0c48@mail.gmail.com>
To: "Levantovsky, Vladimir" <Vladimir.Levantovsky@monotypeimaging.com>
Cc: www-style <www-style@w3.org>
The problem is most acute on mobile devices. Assuming Web designers who use
'pt' actually know what it means in CSS (a highly questionable assumption,
IMHO), a designer who specifies 12pt text for a page is probably not
thinking about mobile users who will be displaying the page on a screen two
inches high (and holding the screen much closer to their eyes).

Fundamentally, physical units make sense for print, because in the end the
output is on a piece of paper and almost all paper is read the same way. But
on the Web, when do you really want an element to have a particular physical
size? All I can think of is touch interfaces and "life size" pictures or

"He was pierced for our transgressions, he was crushed for our iniquities;
the punishment that brought us peace was upon him, and by his wounds we are
healed. We all, like sheep, have gone astray, each of us has turned to his
own way; and the LORD has laid on him the iniquity of us all." [Isaiah
Received on Wednesday, 6 January 2010 23:09:17 UTC

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