title: How to use superscript in an html text input tag?
body: <p>I've got a simple input tag (which I prettify using Bootstrap) in which I now want to place a superscript (to display "m<sup>2</sup>"). The problem is that when I do this:</p>
  
  <pre><code>&lt;input class="form-control" name="gla" placeholder="m&lt;sup&gt;2&lt;/sup&gt;" type="text"&gt;
  </code></pre>
  
  <p>the placeholder literally shows this: <code>m&lt;sup&gt;2&lt;/sup&gt;</code></p>
  
  <p>Does anybody know how I can properly display the superscript? All tips are welcome!</p>