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CSS Selectors

CSS Selectors

A selector is a pattern that matches a set of elements in an HTML or XML document.

The following table summarizes the CSS Selector syntax:

Pattern Type Matches
* U any element
E T an element of type E
E[foo] A an E element with a "foo" attribute
E[foo="bar"] A an E element whose "foo" attribute value is exactly equal to "bar"
E[foo~="bar"] A an E element whose "foo" attribute value is a list of whitespace-separated values, one of which is exactly equal to "bar"
E[foo|="en"] A an E element whose "foo" attribute has a hyphen-separated list of values beginning (from the left) with "en"
E:first-child P an E element, first child of its parent
P an E element being the source anchor of a hyperlink of which the target is not yet visited (:link) or already visited (:visited)
P an E element during certain user actions
E:lang(fr) P an element of type E in language "fr" (the document language specifies how language is determined)
E::first-line P the first formatted line of an E element
E::first-letter P the first formatted letter of an E element
E::before P generated content before an E element
E::after P generated content after an E element
E.warning L an E element whose class is "warning" (the document language specifies how class is determined).
E#myid I an E element with ID equal to "myid".
E F D an F element descendant of an E element
E>F C an F element child of an E element
E + F S an F element immediately preceded by an E element
Type Legend:
A - Attribute
C - Child
I - ID
L - Class
D - Descendant
P - Pseudo-class/element
S - Adjacent Sibling
T - Type
U - Universal


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