You have few tabs on your page, and you would like them to auto-rotate every few seconds automatically, we will tell you how to do this.
Step 1: Add Class to the Tabs element
I will use here my-rotating-tabs as a class name
Step 2: Add Script Editor Web Part
You can refer to the following article if you don't know how to add a Script Editor Web Part:
Open the following link, copy all of its content, and paste it into the Embed dialog of the Script Editor Web Part
Note: to control how many seconds should the script wait until it moves automatically to the next element, you should update a variable in the script called secondsToRotate ( e.g: 5 means 5 seconds )
Save the page, and you're done!