I have implemented intro.js on my website. My site has a fixed header and footer. The tour covers objects in the header and footer. However, when the tour jumps to the footer, the page content scrolls every time the tour moves to a new item. I can't figure out how to stop it.

My website is https://the.computing.cafe/ and the tour button is at the bottom left.

I've also created a simple repl which shows the same behaviour.

https://introjs.computinginschools.repl.co/

I can post the code here if required. I've tried asking on intro.js github and there is no response. Please help?