496840-1.html - mozsearch

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<!DOCTYPE html>

<html>

<body>

<fieldset id="fs1"><legend>#2</legend></fieldset>

<fieldset id="fs2"><legend>#1</legend><legend>#2</legend></fieldset>

<script>

document.body.offsetHeight;

var fs1 = document.getElementById("fs1");

var l = document.createElement("legend");

l.textContent = "#1";

fs1.insertBefore(l, fs1.firstChild);

var fs2 = document.getElementById("fs2");

fs2.firstChild.remove();

</script>

</body>

</html>