title: Specify width of 3 chars for an html input text
body: <p>How would I create an <code>HTML</code> text box that exactly 3 characters can fit into it?<br>
  I found this online:  <code>&lt;input type="text" style="width: 10px; padding: 2px; border: 1px solid black"/&gt;</code><br>
  It creates a text box with width of 10px. I could use this but I was wondering if we could explicitely set for 3 chars width instead of "playing" with pixels,</p>