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The W3C Markup Validator

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From: Geoff Deering
Date: Oct 6, 2017 3:54PM

Hello,

I've been out of the Web Accessibility domain for around 15 years... age
and disability. I use to contribute to the W3C Guidelines in this area, so
I had a reasonable handle on this.

I was in the process of writing an article on Web Standards and Compassion
and Wisdom for an online magazine.... which I feel passionate about... but
I've been stopped in my tracks by The W3C Markup Validator (
https://validator.w3.org/)

If anyone can please explain to me what is going on with the W3C Validator
I'd appreciate it.

I thought that all the DTDs would be backward compatible. It doesn't seem
so. Even the code on this example no longer validates...

https://www.w3.org/wiki/Validating_your_HTML#How_to_validate_your_pages

Actually, I've gone through so many web sites that are from people who know
these standards, and I can't find any that are not showing errors. These
people know these standards well and how to apply them.

So what is happening with the W3C Validator?

The only instances I see of no errors and just warnings are where the
doctype is declared in the HTML5 declaration <!DOCTYPE html>.

I've also got little idea how to apply semantic richness to HTML5.... how
do <strong> etc work in HTML5?

But back to the W3C validator, what is going on with it... is it now only
validating HTML5? That's the way it appears to me.

----------------
Geoff Deering