Now that you've had some hands-on experience with making templates, you've probably noticed that Joomla! outputs quite a bit of CSS class and
id rules. Even if you intend to control much of that output with module chrome and template overrides, it's helpful to know where to look for and how to set up those overrides.
You can always use your DOM Source Inspector to see what's wrapped around markup that you're currently working with, but clearly, it will be helpful to have a heads-up on what to look for within the DOM as well.
We'll use this chapter to go over
jdoc tags for templates, the standard CSS
id rules that Joomla! outputs, how module and template override files are organized, as well as ...