Image jumping above 3k px

I’m building a top graphic (the rocket graphic that starts with “How Sleuth Deployment Tracking Works” - it works well up to about 3k px in width, but once you span the screen broader than that the rocket jumps up into the above section. Any ideas how to resolve? I originally had this set up as a grid then moved to columns as that seemed to work better but can’t figure out the issue with the image jumping up. Thanks in advance!

Sorted - needed a parent container with a max-width.