How to remove margin and padding from my form

Hello, 

I want to remove the Margin & Padding from .Form-all because it centers my form. 
Where can I edit this ? I found a custom css part but this won't override the current setting.

Thank you for contacting us.

You can remove margins and padding from your form by Injecting Custom CSS. To do that inside of your Form Builder select Setup & Embed tab, then click on Preferences, then select Form Styles tab and inside of Inject Custom CSS field at the bottom of existing code paste this code:

.form-all { margin: 0 !important; padding: 0 !important; } 

Hope this will help. Let us know if you need further assistance. 

Lol xD I was edititing the wrong form..I already edited it the right way lol