Sutakira,
You Don’t know how long I’ve wanted to say that…don’t judge, just help.
Did you ever find a fix? I experience a similar issue using a android and a different theme from iThemes. Except the gap is horizontal between a header image and the nav right below it. It doesn’t show up on computer based FF, IE, or Chrome.
globaldataconsortium.com/worldview
Good on ya’.
