title: Superscript or subscript in TextBlock
body: <pre><code>&lt;TextBlock Foreground="Black" FontSize="50" FontFamily="Segoe UI"&gt;
      &lt;Run&gt;Normal Text&lt;/Run&gt;
      &lt;Run Typography.Variants="Superscript" Text="Superscript123"/&gt;
      &lt;Run Typography.Variants="Subscript" Text="Subscript123"/&gt;
  &lt;/TextBlock&gt;
  </code></pre>
  
  <p>Below is my screen shot. It seems that certain characters are not allowed in super/sub script.
  <img src="https://i.stack.imgur.com/tIiol.png" alt="enter image description here"></p>
  
  <p>Actually I want to put a <strong>®</strong> symbol what I'm getting is</p>
  
  <p><img src="https://i.stack.imgur.com/XWOaA.png" alt="enter image description here"></p>
  
  <p>and what I want is</p>
  
  <p><img src="https://i.stack.imgur.com/O8jlp.png" alt="enter image description here"></p>
  
  <p><strong>P.S.</strong> I found this answer <a href="https://stackoverflow.com/a/3435675/468724">https://stackoverflow.com/a/3435675/468724</a> but there is no such property as <code>BaselineAlignment</code></p>