Remove Border around form not using CSS codes

I have a border around every single form I make automatically.

I do not know how to take it off.

Apparently you have to use CSS codes to get rid of this border EVERY SINGLE TIME.

I am not a web guru. Can you please tell me how I can have a simple form without shadows or borders without having to go injecting codes and what not?

If this is not an option, please consider making your default form without these unnecessary borders and shadows and have them as an additional option.

Thank you,

Frustrated user.

Thank you very much.