Why does a adding a product named "Label" to the navigation menu break the navigation?

When Pressero creates navigation items we add the name of the product as a css class to navigation list items. So in this case it is "label" which also matches other css values for label where certain css is applied for labels above inputs.  This causes the navigation to look off.  To fix this, you should change the name of the product to something other than "label"- such as "Label A". The same would happen if you named a product "navigation" or "navbar" or "sidebar" or other classes we use.