gecko/layout/reftests/bugs/355548-4.xml

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<html xmlns="http://www.w3.org/1999/xhtml" class="reftest-wait">
<head>
<style>
/* test the situation where an nsStyleFont is cached in the rule tree but we have to blow it
away because MathML is suddenly introduced */
.v { font: 48px "Verdana"; }
</style>
<script>
function addMathML() {
function createMathMLElement(tag) {
return document.createElementNS("http://www.w3.org/1998/Math/MathML", tag);
}
var body = document.getElementById("body");
body.offsetTop;
// if we don't blow away the rule tree correctly, then we will cache an nsStyleFont with
// a scriptsizemultiplier of 0.71 (the default) and use it to style mstyle2, so the
// scriptlevel change will not scale the text by 0.5
var math = createMathMLElement("math");
var mstyle = createMathMLElement("mstyle");
mstyle.setAttribute("scriptsizemultiplier", "0.5");
var mstyle2 = createMathMLElement("mstyle");
mstyle2.setAttribute("class", "v");
var mstyle3 = createMathMLElement("mstyle");
mstyle3.setAttribute("scriptlevel", "+1");
var mi = createMathMLElement("mi");
mi.textContent = "Id";
mstyle3.appendChild(mi);
mstyle2.appendChild(mstyle3);
mstyle.appendChild(mstyle2);
math.appendChild(mstyle);
body.appendChild(math);
document.documentElement.className = '';
}
</script>
</head>
<body id="body" onload="addMathML()">
<p><span class="v">Hello</span></p>
</body>
</html>