Re: Is Common Failure Technique F87: inserting non-decorative content by using ::before and ::after pseudo-elements; still valid?

The way I read it is that meaningful content must still be maintained when
the user override happens - adapting the rules example css let's suppose
the site has the following:

p.jim q::before { content: "Jim Says: " }
p.mary q::before { content: "Mary Says: " }

But the user stylesheet has the following

q::before { content: open-quote }
q::after  { content: close-quote }

then we can say that the user css overrides and destroys some meaningful
content.

which could totally be foreseen - obviously the Jim says: should be before
the p.jim
text node - the qu override shown above would be something you could expect
might happen and structuring your CSS in such a way would be improper use
of before.

Thanks,
Bryan Rasmussen

On Fri, Mar 15, 2024 at 8:01 PM Phill Jenkins <pjenkins@us.ibm.com> wrote:

> Regarding the WCAG 2.2 Technique F87:
>
> Failure of Success Criterion 1.3.1 due to inserting non-decorative content
> by using ::before and ::after pseudo-elements and the 'content' property in
> CSS
>
> https://www.w3.org/WAI/WCAG22/Techniques/failures/F87
>
>
>
>    1. Does anyone agree that F87 is no longer a valid failure technique?
>       - Quote: “A common way to test [this criterion]* is to disable CSS
>       styles to view whether content added using pseudo-elements remains
>       visible.” Who in 2024 disables CSS anymore (and why)?  Disabling CSS and
>       JavaScript is not a valid “disability” test in my opinion.
>       - JAWS and free screen readers VoiceOver and NVDA support reading
>       the content, including non-decorative content.
>       - Quote: “…they may not be able to access the information that is
>       inserted using CSS” is not explained why this is still valid even when
>       users load their own CSS.  If they load their own CSS, they are not
>       disabling CSS & JavaScript.
>    2. Can anyone provide a web example where this “testing technique”
>    would uncover a real accessibility problem?
>
>
>
> The text ”this critiera” is a typo on the W3C WAI page.
>