Video widget is useful to display the upcoming product launch, any offers, or any tutorials on any page in the customer portal.
Drag & drop the ‘Video’ widget to the page layout and configure the following details: 
Title: Insert the relevant video title name.
Select Video Types:
YouTube URL: Paste/insert the ‘URL’ of the YouTube video. If you have selected the YouTube URL, you will get the “Auto-play” video option. 
– Auto-play: Enable the Autoplay option for auto-playing the video when portal users navigate there.
Embedded Code: You can insert your embedded code that should contain an iframe. You can add the 3rd party embedded code for the video that must be in proper format.