As a total newbie in Drupal I asked myself where do I include a css file? (Using Drupal 6)
Since i know now which function to use to include my css file, I don't know where.
Do I have to simply create a new module (named "mymodule" like in the example from stackoverflow)?
Or is the css file only applied to the module "mymodule"? If so, how can I apply it to a page filled with plain HTML?