Mysterious horizontal scroll on my friends computer, but not on mine

Hi All,
When I QC my site on my friends’ computer there’s a very small horizontal double scroll bar on the homepage. When viewed on FireFox


SiteFeedback

I don’t see on my laptop, both in the browser or the preview mode. All my sections have overflow off AND when I go to preview mode on his computer the horizontal scroll isn’t there either. I don’t understand how to fix something I can’t see.

Any help is much appreciated
Jacob

browser version
https://style-guide-588470-955857-1ddc3979d8a47.webflow.io/home

Read only
https://preview.webflow.com/preview/style-guide-588470-955857-1ddc3979d8a47?utm_medium=preview_link&utm_source=designer&utm_content=style-guide-588470-955857-1ddc3979d8a47&preview=66e487f90601df41ac32fd3f0ab72da9&pageId=60bab1e8fc862b17db5ea082&workflow=preview


Here is my site Read-Only: LINK
(how to share your site Read-Only link)