One form has a border and the other has not

I have 2 forms embedded on my site, and I can't figure out why one has border, and one does not.

http://thebaycup.net/become-a-member/

I've checked the design dashboard, but can't find any differing settings between the 2 forms.

I believe these are the forms you are referring to:

2018-20119 Member Form - https://www.jotform.us/form/82114560333144
Donate Form - https://www.jotform.us/form/63537684572164

Please try inject this custom CSS code in the "Donate Form":

@media screen and (max-width: 480px), screen and (max-device-width: 767px) and (orientation: portrait), screen and (max-device-width: 415px) and (orientation: landscape) {
.form-all {
width: 100% !important;
}

.form-all {
-webkit-border-radius:0;
-moz-border-radius: 0;
border-radius: 0;
}
}

@media screen and (max-width: 480px), screen and (max-device-width: 768px) and (orientation: portrait), screen and (max-device-width: 415px) and (orientation: landscape) {
.jotform-form {
padding: 0 !important;
}
}

Here's a guide on How-to-Inject-Custom-CSS-Codes. Here's the result:

Hope that helps. Thank you.