Although the HTML 5 specification is still in development, on January 22, 2008, the W3C published the first public working draft of the HTML 5 differences from HTML 4. It looks to me as if developers who are familiar with HTML 5 and CSS positioning and styling will have plenty of work upgrading older sites.
No More Frames! According to the working draft, the elements frame, frameset, and noframes are not in HTML 5 because “…their usage affected usability and accessibility for the end user in a negative way.”
What About XHTML 2? XHTML 2, as proposed, is an entirely new language that does not have backward compatibility to HTML 4.01, so the upgrade path will be from HTML 4 to HTML 5.
You can learn more about YUI and find a link to download the free library here.
It’s important to be able to test sites in multiple versions of Microsoft Internet Explorer, particularly IE6 and IE7.Â When IE7 was still in Beta, I tried various methods of running both IE6 and IE7, but nothing I tried was completely satisfactory.Â I finally resorted to running IE6 on a backup desktop system.
This morning I received an email from another developer who said he had good luck with the Multiple IE Installer from Tredosoft.Â I downloaded the installer and used it to install IE 5.5 and 6.0 on my primary system, which has IE7 installed.Â So far, so good.
Thanks for the tip, Mike.