Signature CSS

I need to have the line of signature margin-top:80px but nothing makes it moves!

https://ibl.knack.com/inbetween#transporter/edit-vehicle4/5c66288b6abdd653a617aca0/

#view_1237-field_762.kn-signature canvas.jSignature{
margin-top: 80px;
}

It worked, thank you so much!

Try this
margin-top: 80px !important;