Question

This example shows you how to use the extended_valid_elements option. This option enables you to specify valid elements and attributes.

<textarea id="valid-elements">
  <p style="text-align: center; font-size: 15px;"><img title="TinyMCE Logo" src="//www.tiny.cloud/images/glyph-tinymce@2x.png" alt="TinyMCE Logo" width="110" height="97" />
  </p>
  <h2 style="text-align: center;">Welcome to the TinyMCE editor demo!</h2>
  <p>
    Please try out the features provided in this example. Check out the next paragraph's HTML.
    You'll see html tags not rendered in the editor's WYSIWYG output. Next, play with the
    Codepen JS to see what you can change in the editor.
  </p>

  <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? Visit the <a href="https://community.tinymce.com/forum/">Community Forum</a>.</li>
    <li>We also offer enterprise grade support as part of <a href="https://www.tiny.cloud/pricing">TinyMCE Enterprise</a>.</li>
  </ul>

  <h2>A simple table to play with</h2>
  <table style="text-align: center;">
    <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',
  height: 500,
  extended_valid_elements: 'img[class=myclass|!src|border:0|alt|title|width|height|style]',
  invalid_elements: 'strong,b,em,i',
  content_css: [
    '//fonts.googleapis.com/css?family=Lato:300,300i,400,400i',
    '//www.tiny.cloud/css/codepen.min.css'
  ]
});