Inline submit button with forminator

I am trying to line up the submit button with the rest of the inline text fields using Forminator. I added some CSS styling code & it seemed like it did the job on the backend of the website. But when I went to Safari to view it on the user-end it was like the code I used never even applied & the submit button was still at the bottom. this is the code I used:

@media only screen and (min-width:783px) {
.forminator-row {
float:left;
padding-right:20px;
}
.forminator-ui#forminator-module-458.forminator-design–default .forminator-button-submit {
margin-top:20px;
}

Am I doing something wrong? Let me know if anymore information is need or if you see the button lined up on your screen?

The page I need help with: [log in to see the link]