What are the best guides to HTML5 & CSS3 support in web browsers?

Question

Do you know about useful resources about HTML5 & CSS3?

UPDATE:

I\'m (and i think a lot of people) looking for practical information how and to what exten

Answer 1

As far as HTML5 goes, I frequently check out:

• https://html5doctor.com
• Dive Into HTML5

And yes, the HTML5 spec, which I recently visited to find out more about supported input types and form field attributes in HTML5:

• https://w3c.github.io/html/
• https://w3c.github.io/html/sec-forms.html#sec-forms

As for CSS3, I often find myself at:

• http://www.css3.info/

Safari reference material, which may or may not be HTML5/CSS3 specific:

• https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/SafariCSSRef/Introduction.html
• https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/SafariHTMLRef/Introduction.html