testing/web-platform/tests/css/css-transforms/preserve3d-and-filter-no-perspective-ref.html


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<!DOCTYPE HTML>
<title>CSS Test Reference (Transforms): Filter on an element in a preserve-3d scene</title>
<link rel="author" title="L. David Baron" href="https://dbaron.org/">
<link rel="author" title="Google" href="http://www.google.com/">

<style>

  svg.cover {
    position: absolute;
    z-index: 1;
    top: 0;
    left: 0;
    width: 500px;
    height: 570px;
  }

</style>

<svg class="cover">
  <polygon fill="black" stroke="blue" stroke-width="8"
           points="266.429,351
                   301.1586,351
                   301.1586,551
                   266.429,551" />
</svg>