I dare you to try downloading the Oracle database client. And actually get it working.
Don't feel stupid for getting confused by the Sun website. It'd bloody awful.
<!doctype html><html lang="en"> <TITLE>Hello!</TITLE> <p>Wooohoo!!! <p>I <3 lemons.
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Hello!</title> </head> <body> <p>Wooohoo!!!</p> <p>I <3 lemons.</p> </body> </html>
Your first one doesn't validate at w3C :C
and also, surely that there that you've posted - browsers interpreting HTML any old way they want - is the reason web drawers spend so long having to make sites work in different browsers?
If you buy a Mac you get the Apple developer toolkit which allows you to make apps for approximately 1% of the world's computing population. It's a minority, but one that cares and will love you for your efforts.
(the last part of that second sentence may be a lie)