Using a couple of other threads, I figured out how to add some code to my header.php file (since I don't know how to work with child themes) to add a banner to my header. Then I added CSS so the banner doesn't show on mobile or tablets.
But the banner is left justified under the logo, and I want it right justified with a little padding from the right edge and in line with the logo.
What CSS do I need to fix that? Or do I need to move where I placed the code in the header.php file (or change the code there)?