How Can I Get Rid of the Shadow on the Border of the Form?

Thanks for asking. Here's how:

1. Copy the following rule to your computer's clipboard:

.supernova .form-all {
 background : transparent !important;
 border: none;
 box-shadow: none;
}

2. Load the form in the form builder and click the Designer button:

3. Click the CSS tab and replace the rule highlighted in the screenshot below with that which is on your clipboard:

4. Save the change:

That should do it but if you need further help with this or anything else, please inform us.

Cheers