<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> Yeah, that big long piece of code that’s on the top of your page. What is it for? Glad you asked! We’ll cover that in this article. This piece of code is very important in your website.
