<!DOCTYPE html>
<html class="reftest-wait">
<head>
<meta charset="utf-8"/>
<title><mo> dynamic form</title>
<link rel="help" href="https://w3c.github.io/mathml-core/#operator-fence-separator-or-accent-mo">
<link rel="help" href="https://w3c.github.io/mathml-core/#dom-and-javascript">
<meta name="assert" content="This test verifies that the form of the operators (and thus their spacing) is updated when you change the child list.">
<link rel="match" href="mo-form-dynamic-ref.html">
<script>
window.addEventListener("load", () => {
// force initial layout so we're sure what we're testing against
document.documentElement.getBoundingClientRect();
for (var i = 1; i <= 6; i++) {
var row = document.getElementById("row" + i);
var x = document.getElementById("x" + i);
x.parentNode.removeChild(x);
row.insertBefore(x, row.firstElementChild);
}
document.documentElement.classList.remove('reftest-wait');
})
</script>
</head>
<body>
<p>The test should render the same as the static reference.</p>
_<math><merror id="row1"><mo>+</mo><mi>y</mi></merror></math>_
_<math id="row2"><mo>+</mo><mi>y</mi></math>_
_<math><mphantom id="row3"><mo>+</mo><mi>y</mi></mphantom></math>_
_<math><mrow id="row4"><mo>+</mo><mi>y</mi></mrow></math>_
_<math><msqrt id="row5"><mo>+</mo><mi>y</mi></msqrt></math>_
_<math><mstyle id="row6"><mo>+</mo><mi>y</mi></mstyle></math>_
_<math><merror><mi id="x1">x</mi><mo>−</mo><mi>y</mi></merror></math>_
_<math><mi id="x2">x</mi><mo>−</mo><mi>y</mi></math>_
_<math><mphantom><mi id="x3">x</mi><mo>−</mo><mi>y</mi></mphantom></math>_
_<math><mrow><mi id="x4">x</mi><mo>−</mo><mi>y</mi></mrow></math>_
_<math><msqrt><mi id="x5">x</mi><mo>−</mo><mi>y</mi></msqrt></math>_
_<math><mstyle><mi id="x6">x</mi><mo>−</mo><mi>y</mi></mstyle></math>_
<script src="/mathml/support/feature-detection.js"></script>
<script>MathMLFeatureDetection.ensure_for_match_reftest("has_operator_spacing");</script>
</body>
</html>
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