css/css-values/attr-serialization.html

<!DOCTYPE html>
<title>CSS Values and Units Test: attr() serialization</title>
<link rel="help" href="https://drafts.csswg.org/css-values/#attr-notation">
<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/10503">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../support/serialize-testcommon.js"></script>
<div>
  <div id="target" data-foo="10.000px">
</div>
<script>
  test_computed_serialization("width", "attr(data-foo type(<length>))", "10px");
</script>