On Oct 26, 2010, at 4:56 PM, Robert Walker wrote:
Marnen Laibow-Koser wrote in post #957260:
Robert Walker wrote in post #957044:
Okay, so let's talk specifics. Assuming valid HTML 5 markup with
no HTML
5 specific features, what breaks on what browsers.
Valid HTML 5 markup (with XML-style self-closing tags) is invalid
HTML 4
markup (because, as Rimantas said, in HTML 4, <br/> is equivalent to
<br>>, with an invalid extra >). That's all you need to know to know
that this is a bad thing.
I'm was not asking about validity. Markup validity is directly
dependent
upon the DOCTYPE specified for the page.
What I'm trying to find out is specifically how IE 6 breaks (as in
incorrectly renders the page) when using valid HTML 5 markup
(including
self-closing tags) with <!DOCTYPE html>. Again assume no HTML 5 only
features only markup syntax.
I'm asking because I don't personally use any version of IE, much less
IE 6. I'd really like to know if IE 6 actually has problems rending
HTML
5 markup.
I haven't tried it myself, and I upgraded my test machine to IE8 at
the beginning of the summer, but I believe that it treats it like "tag
soup" and ignores any tag that it doesn't understand. That is, it
shows the content of that unknown tag, but it doesn't apply any
special meaning to the tag. It would likely be Quirks Mode all the way
down, definitely not something that looked like you cared about that
browser, but it would be readable in the sense that all the words
would be there.
Walter
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