Address bar causing responsiveness issues

Untitled video

Hey Guys!
Would appreciate some help. I have HTML creating a parallax effect which works great. The background-position of the photos is set to ‘cover’. this means it extends to the full height of the page. However, when swiping up and down using mobile, the address bar appears and disappears upon scrolling. This movement therefore changes the size of the images which has a jumping effect. This is intended to be used as a portfolio so the user interaction needs to be as smooth as possible. Any suggestions would be greatly valued! Thanks

^ to see the issue :slight_smile: