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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 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 XXÉX</mn>
<mrow style="background: lightyellow; margin-inline-start: -3em"><mn style="visibility: hidden">p 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 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 XXÉX</mn>
<mn style="color: yellow; margin-inline-start: -3em">p X</mn>
</mrow>
</math>
</div>
</body>
</html>