Goal: make the top edge of the header menu black without turning the bottom of the announcement bar black; the menu sticks on scroll, and its bottom is already black via custom CSS.
Proposed solutions:
Edit CSS (base.css/theme.css/custom.css) and add: .header { border-top: 1px solid #000; }. This visually adds a black top line to the header without affecting the announcement bar.
Alternatively, edit theme.liquid and insert additional code before the tag (exact snippet not visible in the post). An image was provided to show the effect.
Outcome: The original poster confirmed the fix worked (“Great, simple and easy!”). No further issues or questions were raised.
Notes: Images were shared to illustrate the before/after appearance but are not required to implement the change. The discussion appears resolved with the CSS border-top approach being the clear, reproducible solution.
Summarized with AI on December 25.
AI used: gpt-5.
It’s important not to make the bottom of the annoncement bar black instead, the difference shows when scrolling down since the menu follows. The bot of the menu is already black which I made through code in the custom css.