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<!DOCTYPE html>
<html class="reftest-wait">
<head>
<style>
html, body {
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<audio id="tweakme" controls></audio>
<script>
function doTest() {
setTimeout(() => {
let tweakme = document.getElementById("tweakme");
// Make the audio element extremely skinny, flush layout, and then revert
// that change:
tweakme.style.width = "1px";
tweakme.offsetHeight; // flush layout
tweakme.style.width = "";
tweakme.offsetHeight; // flush layout
document.documentElement.removeAttribute("class");
}, 300);
}
window.addEventListener("MozReftestInvalidate", doTest);
</script>
</body>
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