1.6. Types of CSS Rules
There are several possible ways to categorize and think about CSS rules.
First, there is the question of what types of style properties the rules define. Second, there is the requirement of describing the type(s) of HTML elements that the rules affect. Finally, there is the issue of whether the styles are "inline", "embedded" or "external."
Let's take a brief look at each of these categorizations, so that you have a good overview of the organization of CSS rules before you embark on a detailed study of their actual use.
1.6.1. What Properties Can CSS Rules Affect?
CSS rules can include properties that affect virtually every aspect of the presentation of information on a Website. A complete reference to these properties ...