Problems showing the header in mobile devices

[britu10]

Hi everyone,

 

I'm pretty new in Prestashop. I'm developing a new theme from 1.7 default "classic". I changed something in the template and now I noticed that the whole Header desappears when it's rendered in small screens (bellow 767px). Some script is changing my DOM, but I don't find where exactly this is happening. I'd like just to avoid scripts and manage it through media queries.

 

I would appreciate some clue, in order to disable this JS behaviour.

 

Thank you very much

David