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, returnsnull
.
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
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|---|
Basic support | 47 | (Yes) | (Yes) | 9 | ? | ? |
Feature | Android | Android Webview | Edge | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile | Chrome for Android |
---|---|---|---|---|---|---|---|---|
Basic support | No support | 47 | (Yes) | (Yes) | ? | ? | ? | 47 |