RE: Notes from call

Other situations related to reflow include that I think could pass:

  *   Page tabs (where some tabs may be off the screen in that size view port) but that individually fit within the view.
  *   Horizontal scrolling controls like carousels but that may not be carousels – things like video posters in a streaming service
  *   Grids that are not data tables – e.g. itunes store songs in multiple columns and rows where each item fits into the view without requiring scrolling an individual item

What is the consensus then on short blocks of horizontally scrolling text that are shorter than 256pixels – would these fail because you have to scroll horizontally even though you only have to scroll in one direction to read the text – but the page as a whole is vertically scrolling?  An example here might be a non-wrapping code block that is shorter than 256px.  Materially the horizontally scrolling content is difficult to track for some users.


From: Bruce Bailey <>
Sent: Friday, March 15, 2024 6:18 PM
To: WCAG 2.x issues list <>
Subject: Notes from call

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We continued our discussions about SC 1.4.10 Reflow<> and how the related Understanding documents can be improved.

Attendance (10):  Alastair Campbell, Bruce Bailey, David Cox, Francis Storr, Giacomo Petri, Gundula Niemann, Laura Oakly, Marco S. (my apologies), Patrick Lauke, Scott O’Hara.
Regrets from Mike Gower and Duff Johnson.

The group has consensus that a nuance approached should be used for evaluating as to what counts as a chuck of content for avoiding scrolling in two dimensions.

One example is carousals.  Typically, a carousal scrolls horizontally while the containing page scrolls vertically.  This is not automatically a failure against the SC.  The meaningful chunks of content within the carousal (i.e., the horizontal scrolling content) is what must not exceed a height equivalent of 256 CSS pixels.

Obviously, it is a challenge is to write this out well enough in Understanding.

The other major concern is what is fair to allow for the exception (other than the easy example of data tables).  Scott volunteered to refine what he has started in the Reflow scratchpad<>.

We need more examples.  Thumbnails are okay, but code will be needed as well.

We also looked at a few For Discussion items from the Board.

  *   add lang attribute to document by fstrr · Pull Request #3740<> merged as bug fix.
  *   1.4.1 Use of color: adding examples to understanding text by detlevhfischer · Pull Request #3717<> back to In Progress
  *   Remove "1280 pixels wide" test step from F94 by patrickhlauke · Pull Request #3739<> back to In Progress

Next week (March 22nd) we are back to our standing agenda<>.

  1.  Review ‘For discussion’ items.
  2.  Review ‘Drafted’ items (30 min), either:

  *   move back to In progress, with more work to do;
  *   move to Ready for approval, if there is general agreement the issue is sufficiently resolved; or
  *   leave in Drafted, if discussion was not concluded satisfactorily.

  1.  Review ‘To do’.
  2.  Time permitting, items of interest to participants, including open discussions.

Received on Monday, 18 March 2024 22:00:53 UTC