Enlarge list box in the Back Office

Hi, 
The client's group names are fairly logistical and he would like the area of ​​choice to be larger.
- Parent Catégorie : .chzn-container-single
Is it possible to do this? Tell me where if possible,
thank you
Best Regards

Hello

The language in screenshot is not English, so it is not clear to us what product you are using and want to make this change. Could you please give us more information about this?

Regards,

Tuan

Hi Tuan,
In Back Office
It's in Category manager: Edit category.
When i select the Existing categories in tree
Regards

Hi Pascal,
To extend width size of the dropdown select list: Parent Category, please open file: [root] -> administrator -> components -> com_edocman -> assets -> css -> style.css
and this
#jformparent_id_chzn
{
width:100% !important;
}
Thanks
Dam

Hi Dam,
Thank you but nothing change (empty cache)

Hi Pascal,
You can submit ticket on category: Edocman and provide your site url with super admin account. I'll help you to make that change
Thanks
Dam