Will give it a go now and let you know.
Thnx for your answer and your help so far.
UPDATE:
The beta file works like a charm. Although it feels like the performance is less than the stable version I'm using. Therefor I'm adding the div manually now.
Again,
Thnx for your fast reply.
UPDATE 2:
I've forked the pen with a working version for future reference:
See the Pen Nrboxp by patrickpietens (@patrickpietens) on CodePen