While I started this blog with an HTML5 doctype, I have now also changed the appropriate divs to the more semantically-correct HTML5 elements, specifically
Firefox 2 treats unknown HTML elements as self-contained elements (like
img), so the solution for that is to serve the page as XHTML, in which case it does work. That of course means making sure each page is valid XHTML, which is often a problem when dealing with HTML-enabled blog comments.
Since this can be a lot of work, and where failure results in unreadable pages for FF2 users, this is reason #2 not to use the new elements just yet. Also, since it has become apparent that XHTML (while having its uses) is not the true successor to HTML, it didn’t seem quite right to me to use this solution for this blog.
So what did I do? A find and replace to turn the elements back into
divs with classes for browsers using Gecko 1.8.* or lower.
This also means bloating up the CSS to deal with two versions of the site, though I plan on writing a replacement script for that too. Fun stuff, huh?
Many parts of HTML5 are usable without using these elements, and their current value on the web today is very low. Still, if you’re crazy and like living on the proverbial edge, you may want to give them a try today.