Well, now we're arguing semantics, but no... an SSI instruction is not part of HTML. It's a server-side scripting language. I could set up my server to interpre

Well, now we're arguing semantics, but no... an SSI instruction is not part of HTML. It's a server-side scripting language. I could set up my server to interpret PHP embedded in .html files as well, but then they're not really HTML files any more.