Form Design: How can I get rid of the border in my form?

Hi there, I can't seem to get rid of the borders on the outside of this form:

https://www.freez.com.au/size-test.html

There is a left, right, and bottom border.  How do I get rid of that?

Thank you.

I have checked your website. but I could not find your embedded form. 

I have checked the form in your account http://www.jotform.ca/form/62467076822259 and it does not have any border on it: 

Could you please confirm us that? 

If the border is still there, please  provide us the link where your form is embedded on, we will be glad to check it and provide the code to remove it. 

You may also try injecting this code to your form: 

.supernova .form-all{

    box-shadow: 0 0 0 rgba(0, 0, 0, 0) !important;    

   border-width: 0px !important;

}

This guide will help you to inject the code to your form: How-to-Inject-Custom-CSS-Codes

However, please provide us with more details, we will be glad to help you.