How do you extend article document class in LaTeX?

Question

I don\'t really need a lot of changes to the default article document class. All I want is:

• redefine page margins (I want them to be the same on all pages, but dif

Answer 1

You start with

\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{classname}[2009/02/24]
\LoadClass{article}

and add any customizations after that.

UPDATE: I recommend you to read LaTeX2e for class and package writers: PDF, HTML. The examples in Section 3 (The structure of a class or package) should be helpful.