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

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 <<>> 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 <<>> 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