CSSNamespaceRule

The CSSNamespaceRule interface describes an object representing a single CSS @namespace at-rule.

Properties

Inherits methods from its ancestor CSSRule.

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 an empty string.

Methods

Inherits methods from its ancestor CSSRule.

Examples

The stylesheet includes a namespace as the only rule. Therefore the first CSSRule returned will be a CSSNamespaceRule.

@namespace url(http://www.w3.org/1999/xhtml);
let myRules = document.styleSheets[0].cssRules;
console.log(myRules[0]); //a CSSNamespaceRule

Specifications

Specification
CSS Object Model (CSSOM) (CSSOM)
# the-cssnamespacerule-interface

Browser compatibility

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