title: How can I validate a text box, which should only allow characters A-Z & a-z, not integers nor special characters
body: <p>How to validate a text box in html, where user will enter his first name, and input do not accept integers &amp; Special Characters?</p>
  
  <pre><code>&lt;input name="txtfname" type="text" maxlength="30" required /&gt;
  </code></pre>