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<!DOCTYPE html>
<html>
<head>
<title>scriptlevel</title>
<meta charset="utf-8"/>
</head>
<body>
<!-- Test scriptlevel on mstyle -->
<math>
<mstyle>
<mtext>O</mtext>
<mstyle mathsize="200%"><mtext>O</mtext></mstyle>
</mstyle>
</math>
<!-- The mfrac element sets displaystyle to "false", or if it was already
false increments scriptlevel by 1, within numerator and denominator.
-->
<math>
<mstyle>
<mstyle displaystyle="false">
<mfrac>
<mtext mathsize="200%">O</mtext>
<mtext mathsize="200%">O</mtext>
</mfrac>
</mstyle>
<mstyle displaystyle="true">
<mfrac>
<mtext>O</mtext>
<mtext>O</mtext>
</mfrac>
</mstyle>
</mstyle>
</math>
<!-- The mroot element increments scriptlevel by 2, and sets
displaystyle to "false", within index, but leaves both attributes
unchanged within base.
The msqrt element leaves both attributes unchanged within its
argument. -->
<math>
<mstyle>
<mroot>
<mtext>O</mtext>
<mtext mathsize="400%">O</mtext>
</mroot>
<msqrt>
<mtext>O</mtext>
</msqrt>
</mstyle>
</math>
<!--
The msub element [...] increments scriptlevel by 1, and sets displaystyle to
"false", within subscript, but leaves both attributes unchanged within base.
The msup element [...] increments scriptlevel by 1, and sets displaystyle to
"false", within superscript, but leaves both attributes unchanged within
base.
The msubsup element [...] increments scriptlevel by 1, and sets displaystyle
to "false", within subscript and superscript, but leaves both attributes
unchanged within base.
The mmultiscripts element increments scriptlevel by 1, and sets displaystyle
to "false", within each of its arguments except base, but leaves both
attributes unchanged within base.
-->
<math>
<mstyle>
<msub>
<mtext>O</mtext>
<mtext mathsize="200%">O</mtext>
</msub>
<msup>
<mtext>O</mtext>
<mtext mathsize="200%">O</mtext>
</msup>
<msubsup>
<mtext>O</mtext>
<mtext mathsize="200%">O</mtext>
<mtext mathsize="200%">O</mtext>
</msubsup>
<mmultiscripts>
<mtext>O</mtext>
<mtext mathsize="200%">O</mtext>
<mtext mathsize="200%">O</mtext>
<mprescripts/>
<mtext mathsize="200%">O</mtext>
<mtext mathsize="200%">O</mtext>
</mmultiscripts>
</mstyle>
</math>
<!--
The munder element [...] always sets displaystyle to "false" within the
underscript, but increments scriptlevel by 1 only when accentunder is
"false". Within base, it always leaves both attributes unchanged.
The mover element [...] always sets displaystyle to "false" within
overscript, but increments scriptlevel by 1 only when accent is "false".
Within base, it always leaves both attributes unchanged.
The munderover [..] always sets displaystyle to "false" within underscript
and overscript, but increments scriptlevel by 1 only when accentunder or
accent, respectively, are "false". Within base, it always leaves both
attributes unchanged.
-->
<math>
<mstyle>
<munder>
<mtext>O</mtext>
<mtext mathsize="200%">O</mtext>
</munder>
<mover>
<mtext>O</mtext>
<mtext mathsize="200%">O</mtext>
</mover>
<munderover>
<mtext>O</mtext>
<mtext mathsize="200%">O</mtext>
<mtext mathsize="200%">O</mtext>
</munderover>
</mstyle>
</math>
</body>
</html>