Attribute: superscriptshift
In <mml:mstyle>
superscriptshift CDATA #IMPLIED
In <mml:math>
superscriptshift CDATA #IMPLIED
In <mml:msubsup>
superscriptshift CDATA #IMPLIED
In <mml:msup>
superscriptshift CDATA #IMPLIED
In <mml:mmultiscripts>
superscriptshift CDATA #IMPLIED