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Test Info:

<html xmlns="http://www.w3.org/1999/xhtml" style="position: absolute; display: table;">
<head><style>span:before { content: '1' }</style></head>
<body onload="document.documentElement.style.display = '';document.documentElement.offsetHeight;"><div style="position: absolute;"></div><span></span></body>
</html>