jumping text when online prototype

https://xd.adobe.com/view/ae033292-425d-4244-9675-f4ab9fb9133e-fb50/ 

attached is file and vid of how it behaves on desktop

also...

I trid to add ther xd file but it says:

"Correct the highlighted errors and try again. The attachment's pocket_demo.xd content type (application/octet-stream) does not match its file extension and has been removed."