title: MASK FORMAT IN HTML FORM
body: <p>This is the current form:</p>
  
  <pre><code>&lt;form&gt;  
      Telephone:
      &lt;input type="text" name="telephone"&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>I want to set a mask for this input so that it will have a mask like <code>xx-xx-xx</code>.</p>