My current project is facing a strange issue - there seems to be an unwanted 16px whitespace or margin at the top of the theme I'm developing, right between the header and admin bar. Even after checking with Firebug, no margin or padding is being shown, and I have even used !important in my CSS to try and override it. Some sources suggest that it might be related to the encoding of the header file, so I tried saving it as UTF-8 (without BOM), but unfortunately, that did not solve the problem.
This mysterious spacing appears in multiple browsers such as Firefox, Safari, and Chrome.
Has anyone encountered this issue before? Any insights on what could be causing it and how to get rid of it?
The layout structure is as follows: first comes the admin bar, then the unexplained white space, followed by the header.