5
votes
3answers
4k views

Relation and differences between SGML, XML, HTML and XHTML

I was wondering what "profile" means in Wikipedia: XML is a profile of an ISO standard SGML, and most of XML comes from SGML unchanged. According to ...
38
votes
4answers
1k views

Why not XHTML5?

So, HTML5 is the Big Step Forward, I'm told. The last step forward we took that I'm aware of was the introduction of XHTML. The advantages were obvious: simplicity, strictness, the ability to use ...