@namespace
Summary
Declares the default namespace and binds a namespace to a namespace prefix.
Examples
The default namespace is applied to names that do not have an explicit namespace component. The following rule declares a default namespace.
@namespace "http://www.w3.org/1999/xhtml";
If you declare an @namespace rule with a prefix, you can use the prefix in namespace-qualified names. For example, consider the following namespace declaration for a namespace prfx.
@namespace prfx "http://prfx.contoso.com";
Based on the previous declaration, the following selector matches E elements in the namespace that the prfx prefix refers to.
prfx|E
The following code example creates two namespace prefixes. First, p elements in any namespace are colored red. Any p elements in the prfx namespace are then recolored blue, and p elements in the msft namespace are recolored green.
@namespace prfx "http://prfx.contoso.com";
@namespace msft "http://msft.example.com";
p {background-color:red;}
prfx|p {background-color:blue;}
msft|p {background-color:green;}
The following code example styles a SVG element. By using the namespace and declaration from this example, all circles that are created with SVG are given a red fill.
@namespace svg "http://www.w3.org/2000/svg";
svg|circle {fill:red;}
Notes
Remarks
The @namespace rule was introduced in Windows Internet Explorer 9. The scope of an @namespace rule is the style sheet that it is declared in. You must declare an @namespace rule after any @charset or @import rules.
Syntax
@namespace prfx? sUrl
Parameters
- prfx
- Optional. A String value that specifies a namespace prefix.
sUrl - A URL Stringvalue that specifies a namespace name.
Related specifications
- CSS Namespaces Module
- W3C Recommendation
See also
Related articles
Syntax
@namespace
Attributions
Microsoft Developer Network: [Windows Internet Explorer API reference Article]