CSS :any-link selector

The `:any-link` CSS pseudo-class matches all elements that match `:link` or `:visited`

:default CSS pseudo-class

The `:default` pseudo-class matches checkboxes and radio buttons which are checked by default, `<option>`s with the `selected` attribute, and the default submit button (if any) of a form.

:dir() CSS pseudo-class

Matches elements based on their directionality. `:dir(ltr)` matches elements which are Left-to-Right. `:dir(rtl)` matches elements which are Right-to-Left.

CSS Filter Effects

Method of applying filter effects using the `filter` property to elements, matching filters available in SVG. Filter functions include blur, brightness, contrast, drop-shadow, grayscale, hue-rotate, invert, opacity, sepia and saturate.

:focus-within CSS pseudo-class

The `:focus-within` pseudo-class matches elements that either themselves match `:focus` or that have descendants which match `:focus`.

:indeterminate CSS pseudo-class

The `:indeterminate` pseudo-class matches indeterminate checkboxes, indeterminate `<progress>` bars, and radio buttons with no checked button in their radio button group.

:is() CSS pseudo-class

The `:is()` (formerly `:matches()`, formerly `:any()`) pseudo-class checks whether the element at its position in the outer selector matches any of the selectors in its selector list. It's useful syntactic sugar that allows you to avoid writing out all the combinations manually as separate selectors. The effect is similar to nesting in Sass and most other CSS preprocessors.

:optional CSS pseudo-class

The `:optional` pseudo-class matches form inputs (`<input>`, `<textarea>`, `<select>`) which are not `:required`.

Element.closest()

DOM method that returns the current element if it matches the given selector, or else the closest ancestor element that matches the given selector, or else null.

matches() DOM method

Method of testing whether or not a DOM element matches a given selector. Formerly known (and largely supported with prefix) as matchesSelector.

matchMedia

API for finding out whether or not a media query applies to the document.

backgroundfetchregistration api: match

backgroundfetchregistration api: matchall

cachestorage api: match

cache api: match

cache api: matchall

clients api: matchall

clients api: matchall: `options.includeuncontrolled` parameter

element api: `beforematch` event

element api: matches

mediaquerylistevent api: matches

mediaquerylist api: matches

speechrecognition api: `nomatch` event

stylemedia api: matchmedium

validitystate api: patternmismatch

validitystate api: stepmismatch

validitystate api: typemismatch

window api: matchmedia

css property: mask-mode: match-source

css property: text-align: match-parent

css selector: `:any-link`: `:any-link` privacy: selector does not match `<link>` elements

css selector: `:empty`: matches elements with whitespace

css selector: `:first-child`: matches elements with no parent

css selector: `:lang()`: matching language codes with wildcards as `:lang(*-latn)`

css selector: `:last-child`: matches elements with no parent

css selector: `:link`: `:link` privacy: selector does not match `<link>` elements

css selector: `:nth-child()`: matches elements with no parent

css selector: `:nth-last-child()`: matches elements with no parent

css selector: `:only-child`: matches elements with no parent

css selector: `:visited`: `:visited` privacy: selector does not match `<link>` elements

headers http header: if-match

headers http header: if-none-match

javascript built-in: intl: numberformat: `numberformat()` constructor: `options` parameter: `options.localematcher` parameter

javascript built-in: regexp: @@match

javascript built-in: regexp: @@matchall

javascript built-in: regexp: `regexp.lastmatch` (`$&`)

javascript built-in: string: match

javascript built-in: string: matchall

javascript built-in: symbol: match

javascript built-in: symbol: matchall