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<!doctype html>
<html style="font-size:16px">
<head>
<title>CSS Values and Units Test: rem subpixel change</title>
<link rel="help" href="https://drafts.csswg.org/css-values/#rem">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<div style="font-size:16px">
<div id="remElement" style="width: 10rem"></div>
</div>
<script>
test(() => {
assert_equals(getComputedStyle(remElement).width, "160px");
document.documentElement.style.fontSize = "16.1px";
assert_equals(getComputedStyle(remElement).width, "161px");
}, "Check that a 0.1px change in root font-size affect rem units.");
</script>
<body>
</html>
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