Hi Ivo
May be this is not a template issue so please be patient with me.
I use Acymailing module as contact form using a custom field of type textarea created inside acymailing but it is locked in a very narrow mode. Same issue in several sections I tried.
I tried some css !important changes on sustom.scss but no luck.
I don't know if this issue comes from acymailing or there is workaround this?
Let me know if you need credentials for the site
Thanks for your awesome support
(this place is a treasure of useful information for joomla and gantry users)
Manolis