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Re: Interaction of "zoom content" and vertical writing modes

From: Alastair Campbell <acampbell@nomensa.com>
Date: Fri, 24 Nov 2017 16:19:48 +0000
To: John Foliot <john.foliot@deque.com>, David MacDonald <david100@sympatico.ca>
CC: Michael Gower <michael.gower@ca.ibm.com>, WCAG <w3c-wai-gl@w3.org>
Message-ID: <0DD55A81-3D0F-49D3-8FE8-C598AF5F614F@nomensa.com>
I think that works, we are clarifying the term “equivalent width” in the note, so for a page which is switched 90 degrees, width becomes height…

From: John Foliot

@David M.

It could be an editorial (clarification) note in the actual SC. (examples today include SC 1.3.3, SC 1.4.1 & 1.4.2, SC 1.4.5, SC 1.4.7, ...and more)



On Thu, Nov 23, 2017 at 6:30 PM, David MacDonald <david100@sympatico.ca<mailto:david100@sympatico.ca>> wrote:
Notes can't be used to create new requirements. If the vertical issue is not in the SC, it can't be freshly introduced in a note as an additional requirement.

David MacDonald

CanAdapt Solutions Inc.

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On Thu, Nov 23, 2017 at 4:07 PM, Alastair Campbell <acampbell@nomensa.com<mailto:acampbell@nomensa.com>> wrote:
> Since there seems to be agreement this is primarily future proofing, can we cover it with a note?

That would be my preference, and it’s already there!

“320 CSS pixels is equivalent to a starting viewport width of 1280 CSS pixels wide at 400% zoom. For web pages which are designed to scroll horizontally, the 320px should be taken as the height rather than width.”


John Foliot
Principal Accessibility Strategist
Deque Systems Inc.

Advancing the mission of digital accessibility and inclusion
Received on Friday, 24 November 2017 16:20:22 UTC

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