:orphan:

.. _superAndSubscript:

======================================
superscript and subscript
======================================

How to write by SpWML
========================

.. code-block:: none
   
   (span)
   +(text, lineHeight:1, mT:0)CH
   +(subscript)3
   +(text, lineHeight:1, mT:0)COO
   +(superscript)-

----

Summary
===============

A block containing superscript and subscript text elements with no child blocks.

By using it as a child block of the span element and combining it with an element whose lineHeight is 1 and mT is 0, you can handle characters in special positions with appropriate placement.

----

Dart Class Reference
======================
`SuperAndSubscriptElement class <https://pub.dev/documentation/simple_widget_markup/latest/simple_widget_markup/SuperAndSubscriptElement-class.html>`__

----

SpWML Parameters
======================

* :ref:`The common<spwml>` parameters.
* :ref:`Parent<text>` parameters. However, isSelectable is invalid.
* baselineCorrection(double). Position correction value. If set, the value will be added to the y coordinate.
* mag(double). Magnification of font size. The default is 0.6, and 1.0 is the same size as the normal font.