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+<!DOCTYPE html>
+<html>
+ <head>
+ <title>scriptlevel</title>
+ <meta charset="utf-8"/>
+ </head>
+ <body>
+
+ <!-- Test scriptlevel on mstyle -->
+ <math>
+ <mstyle scriptsizemultiplier="2">
+ <mtext>O</mtext>
+ <mstyle scriptlevel="1"><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 scriptsizemultiplier="2">
+ <mstyle displaystyle="false">
+ <mfrac>
+ <mtext>O</mtext>
+ <mtext>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 scriptsizemultiplier="2">
+ <mroot>
+ <mtext>O</mtext>
+ <mtext>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 scriptsizemultiplier="2">
+ <msub>
+ <mtext>O</mtext>
+ <mtext>O</mtext>
+ </msub>
+ <msup>
+ <mtext>O</mtext>
+ <mtext>O</mtext>
+ </msup>
+ <msubsup>
+ <mtext>O</mtext>
+ <mtext>O</mtext>
+ <mtext>O</mtext>
+ </msubsup>
+ <mmultiscripts>
+ <mtext>O</mtext>
+ <mtext>O</mtext>
+ <mtext>O</mtext>
+ <mprescripts/>
+ <mtext>O</mtext>
+ <mtext>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 scriptsizemultiplier="2">
+ <munder>
+ <mtext>O</mtext>
+ <mtext>O</mtext>
+ </munder>
+ <mover>
+ <mtext>O</mtext>
+ <mtext>O</mtext>
+ </mover>
+ <munderover>
+ <mtext>O</mtext>
+ <mtext>O</mtext>
+ <mtext>O</mtext>
+ </munderover>
+ </mstyle>
+ </math>
+
+ </body>
+</html>