Ciaran -
I am still tweaking the Substance template at our site. The site looks fine on the laptops and iPads. On smaller screens (iPhones and Blackberry), however, the Hornav menu does not appear. This makes navigation difficult. I found your suggested code for the custom css field at #4514 to replace the default top menu with the mobile menu for this screen size, but it did not seem to have any affect. Any suggestions? The url of the site is dev2.amagansettseasalt.com. Thanks!