Re: Alternative Style Sheets

Le Sam 13 octobre 2012 5:29, Markus Ernst a écrit :
> Am 12.10.2012 22:20 schrieb "Gérard Talbot":
>> Le Ven 12 octobre 2012 13:14, Markus Ernst a écrit :
>>> I think that the concept of alternate style sheets is somehow too
>>> unspecific for this use case. To address it, it would be nice to
>>> specify
>>> a standardized set of style sheet alternatives for the most common
>>> accessibility needs, such as big font size, high contrast,
>>> keyboard-only
>>> navigation or whatever.
>> I do not agree. Any webpage can be styled to honor the preferred
>> font-size
>> of the user. The font size should ideally be left to the user to decide.
>> So web authors shouldn't set it in webpage. Several people have
>> explained
>> this before. Felix Miata, Stephen Poley, Oliver Reichenstein, etc
> [...]
>> My position is: by default, the persistent, the preferred and the
>> alternate [1] stylesheets should always respect and honor the user's
>> font-size as set in his UA and they should always have sufficient,
>> effective color contrast promoting readability/legibility.
> You state that accessibility is not a use case for alternate style
> sheets, because accessibility should be the base of every design.

Yes. It should be as far as preferred font-size of visitors and effective
color contrast promoting readability/legibility.

> In an
> ideal world I would agree. But in reality, authors are most often not
> free to apply perfectly accessible designs. We have to stick to CD
> guidelines,

CD guidelines? I'm not sure I understand what this is. But, anyway, these
guidelines should not override the users' preferred font-size.

> or even get fully elaborated page designs from Graphic
> Designers that we have to implement.
> In these cases alternate stylesheets could be of help, but only (or at
> least much better) if their purpose would be identifiable by the
> browser, which would be possible with a specified set of accessibility
> style sheets.
> Let me give you an example. My favorite football club recently
> redesigned their website. It's awful: - they seemed to
> try hard to make it look "hip hop" resp. "urban", as they expect this to
> be what the fans like.

Most likely those football club fans are under 35-40 years old when/where
they do not mind small (and/or frozen) font sizes. Also, often web
designers are youngsters who do not have low vision and who prefer to have
a lot of stuff filing webpages and lots of flash animated stuff, cosmetic
effects, over-excessively driven by javascript, DHTML, etc.

> I doubt that there was any chance for the web
> designer to change the design towards more accessibility. But if (s)he
> could have suggested one or two alternate style sheets that respect
> accessibility needs, I am sure (s)he would have got the budget to write
> them.

Markus, I respectfully still disagree with you. I do not want websites to
create, develop, manage, tune alternate stylesheets in the name accessible
font-size and suitable/reasonable color contrast for
readability/legibility purposes. I want the normal default style sheets to
be accessible, not to override users' font-size, etc.

In order to override the users' preferred font-size, you have to code, to
add declarations, etc. In order to respect and honor the users' preferred
font-size, you have nothing to do, no code to add!

The following is one of my preferred quotes:

For this year's list of worst design mistakes, I decided to try something
new: I asked readers of my newsletter to nominate the usability problems
they found the most irritating.
1. Legibility Problems
Bad fonts won the vote by a landslide, getting almost twice as many votes
as the #2 mistake. About two-thirds of the voters complained about small
font sizes or frozen font sizes; about one-third complained about low
contrast between text and background.
Top Ten Web Design Mistakes of 2005

CSS 2.1 Test suite RC6, March 23rd 2011

Contributions to CSS 2.1 test suite

Web authors' contributions to CSS 2.1 test suite

Received on Sunday, 14 October 2012 01:59:49 UTC