Hi guys,
The “nav” tip did the trick! Renamed <nav>
to <div id="nav">
and all was well.
Turns out that I also don’t need the respond.js plugin.
How long can it take to fix such a ‘mistake’… ??
Thanks a lot!
P.S. @alchymyth: will still have a look at the Twenty Twelve theme. So also thanks for that tip.