CSS Selector syntax for selecting HTML elements.
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| * | any element | |
| E | an element of type E | |
| E[foo] | an E element with a "foo" attribute | |
| E[foo="bar"] | an E element whose "foo" attribute value is exactly equal to "bar" | |
| E[foo~="bar"] | an E element whose "foo" attribute value is a list of whitespace-separated values, one of which is exactly equal to "bar" | |
| E[foo^="bar"] | an E element whose "foo" attribute value begins exactly with the string "bar" | |
| E[foo$="bar"] | an E element whose "foo" attribute value ends exactly with the string "bar" | |
| E[foo*="bar"] | an E element whose "foo" attribute value contains the substring "bar" | |
| E:root | an E element, root of the document | |
| E:nth-child(n) | an E element, the n-th child of its parent | |
| E:nth-last-child(n) | an E element, the n-th child of its parent, counting from the last one | |
| E:nth-of-type(n) | an E element, the n-th sibling of its type | |
| E:nth-last-of-type(n) | an E element, the n-th sibling of its type, counting from the last one | |
| E:first-child | an E element, first child of its parent | |
| E:last-child | an E element, last child of its parent | |
| E:last-of-type | an E element, last sibling of its type | |
| E:only-child | an E element, only child of its parent | |
| E:only-of-type | an E element, only sibling of its type | |
| E:empty | an E element that has no children (including text nodes) | |
| E:link | an E element that is a hyperlink and not yet visited | |
| E:visited | an E element being the source anchor of a hyperlink of which the target is not yet visited (:link) or already visited (:visited) | |
| E:active | an E element that is a hyperlink that has been clicked and is rendering | |
| E:hover | an E element the user is hovering the mouse cursor over | |
| E:focus | an E element during certain user actions | |
| E:target | an E element being the target of the referring URI | |
| E:lang(fr) | an element of type E in language "fr" (the document language specifies how lnguage is determined) | |
| E:enabled | a user interface element E which is enabled | |
| E:disabled | a user interface element E which is disabled | |
| E:checked | a user interface element E which is checked (for instance a radio-button or checkbox) | |
| E::first-line | the first formatted line of an E element | |
| E::first-letter | the first formatted letter of an E element | |
| E::before | generated content before an E element | |
| E::after | generated content after an E element | |
| E.warning | an E element whose class is "warning" (the document language specifies how class is determined) | |
| E#myid | an E element with ID equal to "myid" | |
| E:not(s) | an E element that does not match simple selector "s" | |
| E F | an F element descendant of an E element | |
| E > F | an F element child of an E element | |
| E + F | an F element immediately preceded by an E element | |
| E ~ F | an F element preceded by an E element |
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