I am trying to make default menu bar in one row only, not multiple rows. Please take a look at my development staging site to see what can I do to make the default menu one row.
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There is not much more that you can do, as this is just a Styling issue.
The default menu - i.e. the menu returned when no Menu is assigned to the appropriate
Since you presumably control the total number of static pages (e.g. this is to be a publicly distributed Theme), you have 3 options: