Valid elements example

<textarea id="valid-elements">
  <p><img style="display: block; margin-left: auto; margin-right: auto;" title="Tiny Logo" src="https://www.tiny.cloud/docs/images/logos/android-chrome-256x256.png" alt="TinyMCE Logo" width="128" height="128" /></p>
  <h2 style="text-align: center;">Welcome to the TinyMCE editor demo!</h2>

  <h2>Got questions or need help?</h2>
  <ul>
    <li>Our <a href="//www.tiny.cloud/docs/">documentation</a> is a great resource for learning how to configure TinyMCE.</li>
    <li>Have a specific question? Try the <a href="https://stackoverflow.com/questions/tagged/tinymce" target="_blank" rel="noopener"><code>tinymce</code> tag at Stack Overflow</a>.</li>
    <li>We also offer enterprise grade support as part of <a href="https://www.tiny.cloud/pricing">TinyMCE premium plans</a>.</li>
  </ul>

  <h2>A simple table to play with</h2>
  <table style="border-collapse: collapse; width: 100%;" border="1">
    <thead>
      <tr>
        <th>Product</th>
        <th>Cost</th>
        <th>Really?</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>TinyMCE</td>
        <td>Free</td>
        <td>YES!</td>
      </tr>
      <tr>
        <td>Plupload</td>
        <td>Free</td>
        <td>YES!</td>
      </tr>
    </tbody>
  </table>

  <h2>Found a bug?</h2>
  <p>If you think you have found a bug please create an issue on the <a href="https://github.com/tinymce/tinymce/issues">GitHub repo</a> to report it to the developers.</p>

  <h2>Finally ...</h2>
  <p>Don't forget to check out our other product <a href="http://www.plupload.com" target="_blank">Plupload</a>, your ultimate upload solution featuring HTML5 upload support.</p>
  <p>Thanks for supporting TinyMCE! We hope it helps you and your users create great content.<br>All the best from the TinyMCE team.</p>
</textarea>

tinymce.init({
  selector: 'textarea#valid-elements',
  plugins: 'code',
  height: 500,
  extended_valid_elements: 'img[class=myclass|!src|border:0|alt|title|width|height|style]',
  invalid_elements: 'strong,b,em,i',
  content_style: 'body { font-family:Helvetica,Arial,sans-serif; font-size:14px }'
});