*

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.

:nth-child(index)

Elements that are the index child of their parent element (1-based).

:nth-child(even)

Elements that are an even child of their parent element (1-based).

:nth-child(odd)

Elements which are an odd child of their parent element (1-based).

:nth-child(formula)

Elements that are the nth child of their parent element (1-based). Formulas are of the form an+b for integers a and b.

:nth-last-child()

The same as :nth-child(), but counting from the last element to the first.

:first-child

Elements that are the first child of their parent.

:last-child

Elements that are the last child of their parent.

:only-child

Elements that are the only child of their parent.

:nth-of-type()

The same as :nth-child(), but only counting elements of the same element name.

:nth-last-of-type()

The same as :nth-last-child(), but only counting elements of the same element name.

:first-of-type

Elements which are the first child of the same element name among their siblings.

:last-of-type

Elements that are the last child of the same element name among their siblings.

:only-of-type()

Elements that are the only child of the same element name among their siblings.

:first

The first element in the result set.

:last

The last element in the result set.

:not(a)

All elements in the result set that are not matched by a.

:even

Even elements in the result set (0-based).

:odd

Odd elements in the result set (0-based).

:eq(index)

A numbered element in the result set (0-based).

:gt(index)

All elements in the result set after (greater than) the given index (0-based).

:lt(index)

All elements in the result set before (less than) the given index (0-based).

[attr]

Elements that have the attribute attr.

[attr="value"]

Elements whose attr attribute is value.

[attr!="value"]

Elements whose attr attribute is not value.

[attr^="value"]

Elements whose attr attribute begins with value.

[attr$="value"]

Elements whose attr attribute ends with value.

[attr*="value"]

Elements whose attr attribute contains the substring value.

[attr~="value"]

Elements whose attr attribute is a space-delimited set of strings, one of which is value.

[attr|="value"]

Elements whose attr attributes is either equal to value or begins with value followed by a hyphen.

:input

All <input>, <select>, <textarea>, and <button> elements.

:text

The <input> elements with type="text".

:password

The <input> elements with type="password".

:file

The <input> elements with type="file".

:radio

The <input> elements with type="radio".

:checkbox

The <input> elements with type="checkbox".

:submit

The <input> elements with type="submit".

:image

The <input> elements with type="image".

:reset

The <input> elements with type="reset".

:button

The <input> elements with type="button" and <button> elements.

:enabled

Enabled form elements.

:disabled

Disabled form elements.

:checked

Checked checkboxes and radio buttons.

:selected

Selected <option> elements.

:root

The root element of the document.

:header

Header elements (for example, <h1>, <h2>).

:animated

Elements with an animation in progress.

:contains(text)

Elements containing the given text.

:empty

Elements with no child nodes.

:has(a)

Elements containing a descendant element matching a.

:parent

Elements that have child nodes.

:hidden

Elements that are hidden, either through CSS or because they are <input type="hidden" />.

:visible

The inverse of :hidden.

:focus

The element that has the keyboard focus.

:lang(language)

Elements with the given language code (either due to a lang attribute on the element or an ancestor, or a <meta> declaration).

:target

Whichever element is targeted by the URI's fragment identifier, if any.