Selector Types:

There are multiple ways of selecting elements from an HTML page. This allows developers to use general selectors when a rule should apply to many elements, and specific selectors when a rule should only apply to a few or one element.

Universal Selector

The Universal selector is used to style every element on a page. The universal selector is the star (*). (The star is often used in computer science to mean “all”).

Element Selectors

The element selector is used to select all elements of a certain type. This selector is applied by simply using an element name (the reserved keyword placed in the opening tag of an element).

So to select all level 2 headings we write h2. Then we could turn their text blue and make them quite large with style rules in the declaration block.

NOTE: This is the selector type that has been demonstrated the most so far in the last few pages.

Class Selectors

Class names assigned to HTML elements via the class="" attribute can also be used to style elements. To select class elements, prepend a dot (.) to the front of the class name in the CSS.

Using class selectors is a great way to select elements that serve the same function.

ID Selector

Just like the class selector, the ID selector allows developers to define style rules for a specific element by calling its unique ID.

ID names are prepended with a number sign (#).

{ TODO: }

Read page 237 of Chapter 10 in Duckett.

---