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This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The CSSNamespaceRule interface describes an object representing a single CSS @namespace at-rule. It implements the CSSRule interface, with a type value of 10 (CSSRule.NAMESPACE_RULE).

Syntax

The syntax is described using the WebIDL format.

interface CSSNamespaceRule : CSSRule {
    readonly attribute DOMString namespaceURI;
    readonly attribute DOMString? prefix;
};

Properties

As a CSSRule, CSSNamespaceRule also implements the properties of that interface. It has some specific properties:

CSSNamespaceRule.namespaceURI
Returns a DOMString containing the text of the URI of the given namespace.
CSSNamespaceRule.prefix
Returns a DOMString with the name of the prefix associated to this namespace. If there is no such prefix, returns  null.

Methods

As a CSSRule, CSSNamespaceRule also implements the methods of that interface. It has no specific methods:

Specification

Specification Status Comment
CSS Object Model (CSSOM)
The definition of 'CSSNamespaceRule' in that specification.
Working Draft Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic supportChrome Full support 47Edge Full support YesFirefox Full support 59IE No support NoOpera Full support 36Safari ? WebView Android Full support 47Chrome Android Full support 47Edge Mobile Full support YesFirefox Android Full support 59Opera Android Full support 36Safari iOS ? Samsung Internet Android Full support 5.0
namespaceURIChrome Full support 47Edge Full support 12Firefox Full support 59IE No support NoOpera Full support 36Safari ? WebView Android Full support 47Chrome Android Full support 47Edge Mobile Full support YesFirefox Android Full support 59Opera Android Full support 36Safari iOS ? Samsung Internet Android Full support 5.0
prefixChrome Full support 47Edge Full support 12Firefox Full support 59IE No support NoOpera Full support 36Safari ? WebView Android Full support 47Chrome Android Full support 47Edge Mobile Full support YesFirefox Android Full support 59Opera Android Full support 36Safari iOS ? Samsung Internet Android Full support 5.0

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown

Étiquettes et contributeurs liés au document

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Contributeurs à cette page : fscholz, chrisdavidmills, tshinnic, erikadoyle, jpmedley, teoli, kscarfone, Sheppy
Dernière mise à jour par : fscholz,