RE: notes on 320 CSS Pixels to inches

Hi Gregg,

I'm not sure what you're expecting there, the size of the CSS pixel will vary depending on the device.

See: https://alastairc.ac/2013/02/how-to-hold-your-ipad/

I.e. they get larger the further away you're intended to view them from.

-Alastair

From: Gregg Vanderheiden GPII [mailto:gregg@raisingthefloor.org]
Sent: 18 January 2018 05:12
To: w3c-waI-gl@w3. org <w3c-wai-gl@w3.org>
Subject: notes on 320 CSS Pixels to inches

Can someone check the thinking - calculations here?
thx
Gregg


RE 320 pixels
A CSS pixel is .26 mm
 x 320 CSS pixels = 83.2 mm  = 8.32 CM = 3.275591 inch



RE 40 CSS Pixels

and 40 CSS pixels would be  10mm or 1 CM

that would be a HUGE button on a phone

and it would be hard to put many of those on a screen -  or much content on the screen with many links / buttons