We got a line underneath the nav menu as part of the nav bar.
On our 13" screen using a Chrome browser, showing tab bar etc, the line doesn’t show up. When we shrink the browser window from the sides, the line only shows up sometimes.
When we enter full screen mode with the browser (no menu bar, tabs or bookmarks etc.), the line shows up.
We know the line is pretty thin, but we really want to keep it that way. Is it possible to fix it, so the line will always show up on any screen size?
Here is my site Read-Only: LINK