<svg xmlns="http://www.w3.org/2000/svg" xmlns:html="http://www.w3.org/1999/xhtml">
  <g id="testmeta">
    <title>CSS Masking: clip-path applied to an element in a clipPath with objectBoundingBox units</title>
    <html:link rel="author" title="Cameron McCormack" href="mailto:cam@mcc.id.au"/>
    <html:link rel="help" href="http://www.w3.org/TR/css-masking-1/#svg-clipping-paths"/>
    <html:link rel="help" href="http://www.w3.org/TR/css-masking-1/#ClipPathElement"/>
    <html:link rel="match" href="reference/clip-path-content-clip-004-ref.svg" />
    <metadata class="flags">svg</metadata>
    <desc class="assert">
      When a clipPath establishes a coordinate system using objectBoundingBox
      units, any other clipPath referenced through the clip-path property on
      the first clipPath's children must use that same coordinate system if
      it is using userSpaceOnUse units.
    </desc>
  </g>
  <defs>
    <clipPath id="inner">
      <rect width="0.25" height="0.25"/>
    </clipPath>
    <clipPath id="outer" clipPathUnits="objectBoundingBox">
      <rect width="0.5" height="0.5" clip-path="url(#inner)"/>
    </clipPath>
  </defs>
  <rect width="100" height="100" fill="red"/>
  <g clip-path="url(#outer)">
    <rect width="400" height="400" fill="red"/>
    <rect width="100" height="100" fill="green"/>
  </g>
</svg>