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Borrowing from CSS 1–3, and then adding its own, jQuery offers a powerful set of tools for matching a set of elements in a document.

To use any of the meta-characters ( such as  !"#$%&'()*+,./:;<=>?@[\]^`{|}~ ) as a literal part of a name, it must be escaped with with two backslashes: \\. For example, an element with id="foo.bar", can use the selector$("#foo\\.bar"). The W3C CSS specification contains the complete set of rules regarding valid CSS selectors. Also useful is the blog entry by Mathias Bynens on CSS character escape sequences for identifiers.

Also in: Selectors > Basic

All Selector (“*”)

Selects all elements.

Also in: Selectors > Basic Filter | Selectors > jQuery Extensions

:animated Selector

Select all elements that are in the progress of an animation at the time the selector is run.

Also in: Selectors > Attribute

Attribute Contains Prefix Selector [name|="value"]

Selects elements that have the specified attribute with a value either equal to a given string or starting with that string followed by a hyphen (-).