CSSNamespaceRule

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  1. Syntax
  2. Properties
  3. Methods
  4. Specification
  5. Browser compatibility

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

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support47 Yes59 No36 ?
namespaceURI471259 No36 ?
prefix471259 No36 ?
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support4747 Yes5936 ?5.0
namespaceURI4747 Yes5936 ?5.0
prefix4747 Yes5936 ?5.0

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Contributors to this page: fscholz, chrisdavidmills, tshinnic, erikadoyle, jpmedley, teoli, kscarfone, Sheppy
Last updated by: fscholz,