title: Remove frameborder attribute on the iframe of Recaptcha
body: <p>I need to know where I can change this line of code of Google recaptcha code:</p>
  
  <p><br/></p>
  
  <p>The frameborder attribute on the iframe element is obsolete. I would like to change the frameborder="0" with in the iframe to something like border:none;.</p>
  
  <p>when validating it gives an error saying "The frameborder attribute on the iframe element is obsolete. Use CSS instead.".</p>
  
  <p>Any ideas of how to fix this?</p>
  
  <pre><code> &lt;dd class="auto recaptcha"&gt;
      &lt;p class="cap"&gt;ReCAPTCHA entry is for testing whether you are a human visitor and to prevent automated spam submissions.&lt;/p&gt;
      &lt;div class="recaptcha-item"&gt;
        &lt;script type="text/javascript" src="http://www.google.com/recaptcha/api/challenge?k=6LfaXscSAAAAAMcN5Mfvza9CyYfV7K5__BbQiPBN"&gt;&lt;/script&gt;
  
  &lt;noscript&gt;
      &lt;iframe src="http://www.google.com/recaptcha/api/noscript?k=6LfaXscSAAAAAMcN5Mfvza9CyYfV7K5__BbQiPBN" height="300" width="500" frameborder="0"&gt;&lt;/iframe&gt;&lt;br/&gt;
      &lt;textarea name="recaptcha_challenge_field" rows="3" cols="40"&gt;&lt;/textarea&gt;
      &lt;input type="hidden" name="recaptcha_response_field" value="manual_challenge"/&gt;
  &lt;/noscript&gt;                &lt;/div&gt;
  
                &lt;p&gt;&lt;sup class="required"&gt;*&lt;/sup&gt; = Required Fields&lt;/p&gt;
      &lt;/dd&gt;
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/eXvYK.jpg" alt="Screenshot of wf4&#39;s answer"></p>
  
  <p>Screenshot of wf4's answer</p>