This problem seems to only occur on iPhones in portrait mode. Does not happen in Webflow preview mode, so I am having difficulty tracking it down.
The page loads fine, but when you start to scroll, the fixed header jumps to the right.
Here is my site Read-Only: https://preview.webflow.com/preview/1st-time-transportation?preview=70d080258e2ca8a2ed57822a65e3f374
Live site: http://www.1sttimetransportation.com