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21 lines
465 B
HTML
21 lines
465 B
HTML
<!DOCTYPE html>
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<html>
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<head>
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<script>
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function boom()
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{
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var mspace = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mspace");
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var emptyset = document.createElementNS("http://www.w3.org/1998/Math/MathML", "emptyset");
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emptyset.setAttributeNS(null, "mathvariant", "3");
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mspace.appendChild(emptyset);
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document.body.appendChild(mspace);
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emptyset.removeAttribute('mathvariant');
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}
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</script>
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</head>
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<body onload="boom()"></body>
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</html>
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