New template - lost boostrap class setting

[oasis58]

Hello,
I changed Joomla's template and I lost the Bootstap class settings.
Now the field is displayed almost as wide as the whole form, with the Protostar template everything is ok.
The template I purchased is https://www.joomlashine.com/joomla-templates/jsn-ares.html, in the specifications it supports bootstrap 3
I guess it's a CSS problem but I do not know where to put my hands. :-(
Can anyone help me ?
Roberto

 

[troester]

Protostar is bootstrap2 (still the Joomla standard).
For bootstrap3 you need overrides http://fabrikar.com/forums/index.php?wiki/prerequisites/#fabrik-3-4-2
http://fabrikar.com/forums/index.php?wiki/prerequisites/#fabrik-3-4-2