Credits and Acknowledgements

Acknowledgements

Many references helped me in the making of this stylesheet:

• https://github.com/redroot/holmes/blob/master/holmes.css
• https://github.com/karlgroves/diagnostic.css
• http://www.w3.org/TR/html5/obsolete.html#obsolete
• https://github.com/nternetinspired/debug-css
• https://github.com/imbrianj/debugCSS
• http://meyerweb.com/eric/tools/css/diagnostics/
• http://www.accessiweb.org/index.php/accessiweb-html5aria-liste-deployee.html
• https://github.com/Heydon/REVENGE.CSS
• https://github.com/j9t/qa-style-sheet
• http://www.nealgrosskopf.com/tech/thread.php?pid=17
• Mémento « Sites web — Les bonnes pratiques »
• « Intégration Web, les bonnes pratiques », pages 335/336
• https://bitsofco.de/linting-html-using-css/
• https://github.com/joedolson/wp-accessibility/blob/master/src/css/diagnostic.css

Although let’s keep in mind the idea has nothing new: Eric Meyer proposed it 07/21/2000. Yup, 2000. And an awesome implementation had been done by Jim Wilkinson, who announced it on 12/19/2002. His diagnose.css is still online, and it's incredibly close to what I did myself (notice counters and html:after, for example).

I only tried to push things further. I suggest you read my article (in French) to learn more about the project.

Contributors

They helped a lot:

• @HugoGiraudel
• @7studio
• @Heydon
• @Llune
• @kloh-fr
• @GaetanBt
• @a5e
• @ireade
• @notabene
• @Lausselloic
• @Dionakra

They translated a11y.css' messages:

• @pd4d10 for Chinese translation
• @bruno-machado for Portuguese Brazilian translation
• @Alex-Sokolov for Russian translation
• @GeorgeGkas for Greek translation
• @Mona1988 for Arabic translation
• @Dionakra (again) for Spanish translation
• @zwiastunsw and @wojsmol for Polish translation
• @Kilian for Dutch translation

They inspired some tests or tricks:

• @matuzo and @Schepp
• @fvsch

There's likely many, many more people to credit here!

Thank you all!