testing/web-platform/tests/mathml/presentation-markup/mrow/mrow-painting-order-ref.html


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<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>mrow painting order (reference)</title>
    <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
    <style>
      .container {
          position: absolute;
          left: 2em;
          top: 10em;
      }
      math {
          font: 50px/1 Ahem;
      }
      .hidden {
          visibility: hidden;
      }
    </style>
  </head>
  <body>
    <p>This test passes if there is no red and content is stacked such that</p>
    <ul>
      <li>foreground (dark colors) is above background (light colors)</li>
      <li>yellow foreground is above green foreground which is itself above blue foreground</li>
      <li>yellow background is above green background which is itself above blue background</li>
    </ul>
    <!-- Paint lightblue background -->
    <div class="container">
      <math>
        <mrow>
          <mrow style="background: lightblue"><mn class="hidden">XXÉ</mn></mrow>
        </mrow>
      </math>
    </div>
    <!-- Paint lightgreen background -->
    <div class="container">
      <math>
        <mrow>
          <mn class="hidden">XXÉX</mn>
          <mrow style="background: lightgreen; margin-inline-start: -3em"><mn style="visibility: hidden">p&#xA0;XXÉ</mn></mrow>
        </mrow>
      </math>
    </div>
    <!-- Paint lightyellow background -->
    <div class="container">
      <math>
        <mrow>
          <mn class="hidden">XXÉX</mn>
          <mn class="hidden" style="margin-inline-start: -3em">p&#xA0;XXÉX</mn>
          <mrow style="background: lightyellow; margin-inline-start: -3em"><mn style="visibility: hidden">p&#xA0;X</mn></mrow>
        </mrow>
      </math>
    </div>
    <!-- Paint blue foreground -->
    <div class="container">
      <math>
        <mrow>
          <mn style="color: blue;">XXÉ</mn>
        </mrow>
      </math>
    </div>
    <!-- Paint green foreground -->
    <div class="container">
      <math>
        <mrow>
          <mn class="hidden">XXÉX</mn>
          <mn style="color: green; margin-inline-start: -3em">p&#xA0;XXÉ</mn>
        </mrow>
      </math>
    </div>
    <!-- Paint yellow foreground -->
    <div class="container">
      <math>
        <mrow>
          <mn class="hidden">XXÉX</mn>
          <mn class="hidden" style="margin-inline-start: -3em">p&#xA0;XXÉX</mn>
          <mn style="color: yellow; margin-inline-start: -3em">p&#xA0;X</mn>
        </mrow>
      </math>
    </div>
  </body>
</html>