Indeed this trick works but now that I have a actif module in the toolbar it also shows the toolbar in the front end, is there a work around for this (it's black in my example : nieuw.bluemansionhotel.com

looking forward to your response

Mart

Hi there,
please do not post to a solved problem, because we do not look into solved threads.

Ok here is the solution: Create an override for the layout.
1.) Connect via FTP to your site > Joomla/templates/jp-work
2.) Copy the complete folder "layouts" to your folder > styles/BM2015
3.) Open and edit the file > styles/BM2015/layouts/theme.php > line 26
4.) Search for jp-top-outer uk-clearfix and add a class: uk-visible-small