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Test Info:

<!DOCTYPE html>
<meta charset="utf-8">
<link rel="author" title="David Shin" href="mailto:dshin@mozilla.com">
<link rel="author" href="https://mozilla.org" title="Mozilla">
<meta name="assert" content="This test checks that absolutely positioned elements are positioned correctly, when their writing mode is different from that of their containing block." />
<link rel="match" href="abs-pos-replaced-vrl-001-ref.html">
<style>
.vert-cb {
position: relative;
width: 250px;
writing-mode: vertical-rl;
}
.horiz-parent {
width: 150px;
writing-mode: horizontal-tb;
}
audio, video, canvas, iframe, svg {
position: absolute;
border: 1px solid blue;
}
</style>
<body>
<div class="vert-cb">
<div class="horiz-parent">
<audio controls></audio>
<video controls style="top: 50px;"></video>
<canvas style="top: 210px;"></canvas>
<iframe style="top: 370px;"></iframe>
<!-- Note: Including width/height attrs in order to test SVG without
<svg style="top: 530px;" width="300" height="20"></svg>
</div>
</div>
</body>