1. Copy the video link from the URL box: https://www.facebook.com/photo.php?v=620141231361941
2. Copy the 15 character red text and replace the XXXXXXXXXXXXXXX in the following embed code:
<iframe src="http://www.facebook.com/video/embed?video_id=XXXXXXXXXXXXXXX" width="600" height="350" frameborder="0"></iframe>
and change your desired width and height.
3. Drag in the HTML element.
4. Paste the code in the Design Panel.
5. Click “update"