Summary 3
Topic Title 1: CSS Rule Naming Conventions
CSS ruling is made up of two parts: first, the selctor, which states what element the rule selects. An example of this is p, which stands for paragraph where you would insert text. Second, there is the declaration, made up of property, which states what aspect of the element is to be afected; then there is value, which defines the property's new state. Example of this would be "color:blue"
Topic Title 2: IDs and Classes
You can give an ID or class any name you wish to, however it cannot start with a number or symbol. IDs and classes give you a second approach to styling your document. You can also use IDs and classes to target specific arreas of your document directly by first adding IDs and class attributes to the tags in your HTML markup and then referencing those IDs and classes in your CSS selectors.
Topic Title 3: The Cascade
Selectors with IDs override selectors with classes, which override selectors with tag names. If the same property for the same tag is defined in more than one location, inline styles override embeded styles, which override style sheet styles. In style sheets, later styles override earlier styles within the same specificity. Defined styles override inherited styles, regardless of specificity.