iframe dropbox code example
Example: dropbox embed
<script type="text/javascript" src="https://www.dropbox.com/static/api/2/dropins.js" id="dropboxjs" data-app-key="YOUR_APP_KEY"></script>
<script type="text/javascript" src="https://www.dropbox.com/static/api/2/dropins.js" id="dropboxjs" data-app-key="YOUR_APP_KEY"></script>