Selector expressions

The jQuery factory function $() is used to find elements on the page to work with. This function takes a string composed of CSS-like syntax, called a selector expression. Selector expressions are discussed in detail in Chapter 2, Selecting Elements.

Simple CSS

Selector	Matches
*	All elements.
#id	The element with the given ID.
element	All elements of the given type.
.class	All elements with the given class.
a, b	Elements that are matched by a or b.
a b	Elements b that are descendants of a.
a > b	Elements b that are children of a.
a + b	Elements b that immediately follow a.
a ~ b	Elements b that are siblings of a and follow a.

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