This chapter goes through the minimum steps for registering a theme within Drupal by creating a .info file. It also shows the syntax for a theme to be able to add custom CSS to your site as we start to implement our example design.
Check your version
This video covers a topic in Drupal 7 which may or may not be the version you're using. We're keeping this tutorial online as a courtesy to users of Drupal 7, but we consider it archived.