@namespace | CSS At-Rules

Used in CSS to handle XML documents that have multiple 'namespaces' (like SVG mixed with XHTML). It tells CSS which namespace a selector should belong to.

Quick example

@namespace svg url('http://www.w3.org/2000/svg');

/* Targets only <rect> elements that are inside the SVG namespace */
svg|rect {
  fill: blue;
}

@namespace Browser Support

Widely available Since 2015 96% global usage

This feature is well established and works across many devices and browser versions. It has been available across browsers since 2015.

Safe to use without fallbacks.

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