W3 . ORG {}

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Custom-built

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🌍 Impressive Traffic: 500k - 1M visitors per month


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Keywords {🔍}

element, selector, pseudoclass, selectors, elements, document, attribute, match, pseudoclasses, css, represents, matches, language, list, namespace, user, tree, html, defined, combinator, type, invalid, specificity, note, url, compound, visited, drop, matching, default, pseudoelements, link, defines, target, focus, root, scope, style, level, pseudoelement, valid, current, values, input, relative, syntax, class, child, represented, space,

Topics {✒️}

org/suites/selectors-4_dev/nightly-unstable/ issue tracking org/tr/2011/wd-selectors4-20110929/ test suite org/tr/its20/ [mathml] patrick org/tr/2013/wd-selectors4-20130502/ https org/tr/2012/wd-selectors4-20120823/ https org/tr/rec-mathml/ [rfc4647] org/tr/xml/ issues index tab atkins jr column-rule-color [css-pseudo-4] defines [css-writing-modes-3] defines org/tr/selectors-4/ editor' outline-color [dom] defines typed child-indexed pseudo-classes reference [css-backgrounds-3] defines dl dt color [css-display-3] defines org/style/css/test/ simple/compound/complex selectors ian hickson forwards-compatible parsing principle definition list dl placeholder-shown pseudo-class matches focus-visible pseudo-class applies user action pseudo-classes org/selectors-4/ previous versions functional pseudo-class taking user-invalid pseudo-class represents shadow-including tree order 4 child-indexed pseudo-classes child-indexed pseudo-classes pseudo-classes pseudo-classes user-altered user-input element org mailing list �13 tree-structural pseudo-classes forward-compatible parsing rules quirks mode pseudo-classes classify elements link history pseudo-classes �10 time-dimensional pseudo-classes combining dynamic pseudo-classes time-dimensional pseudo-classes placeholder-shown pseudo-class target container pseudo-class pseudo-classing pseudo-elements future pseudo-class relative line [css-scoping-1] defines default-option pseudo-class focus container pseudo-class direction [css22] defines tree-abiding pseudo-elements

Questions {❓}

• '[' [ | ] ?
• = [ '~' | '|' | '^' | '$' | '*' ]?
• = [ ?
• = [ ?
• = [ | '*' ]?
• = ?
• = | ?
• = ?
• Add comma-separated syntax for multiple-value matching?
• Are these still necessary now that we have more rigorous definitions for match and invalid selector?
• Does ::first-line:not(:focus) match anything?
• E:nth-child(n [of S]?
• E:nth-last-child(n [of S]?
• Should it instead default to the root element, to match the definition of :scope?
• The :nth-child(An+B [of S]?
• The :nth-last-child(An+B [of S]?
• Why does :visited have this strange behavior and restrictions?
• Why this exception for the explicit universal selector?
• Drop( [ active || valid || invalid ]?

External Links {🔗}(82)

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Libraries {📚}

• Dropzone.js
• Typed.js
• Video.js

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