What do I need to know to make my website work on mobile browsers?

Question

I am using ASP.NET 3.5 with Visual Studio 2008. I have a few questions surrounding my website and mobile users.

1. Will my website be displayed correctly on a mob

Answer 1

head:

<%@ Page Language="C#" ContentType="application/xhtml+xml"%>

Page must be 100% valid: use & instead of &, and
instead of
and so on. Do not use external css files, it must be inline. Do not use javascript.