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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Test: Font-relative length units (em) in width media queries</title>
<link rel="author" title="Chris Rebert" href="http://chrisrebert.com">
<link rel="help" href="https://www.w3.org/TR/css3-mediaqueries/#units">
<link rel="help" href="https://www.w3.org/TR/mediaqueries-4/#units">
<link rel="match" href="reference/ref-green-body.xht">
<meta name="assert" content="Font-relative length units (such as 'em') in media queries should be calculated based on the initial value of 'font-size', not based on author style declarations, such as: html { font-size: 200%; }">
<style>
:root {
font-size: 100000px;/* ~87ft */
}
body {
background: red;
}
p {
font-size: 24px;
}
</style>
</head>
<body>
<p>This should have a green background.</p>
<script>
document.body.offsetTop;
</script>
<style>
@media (min-width: 1em) {
body {
background: green;
}
}
</style>
</body>
</html>
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