Hi,
For that level of customization, I would rather recommend using custom CSS to move the border to the different element:
.probox {
border: none !important;
}
.proinput {
box-shadow: 0 0 0px 1px inset #cccccc !important;
border-radius: 4px !important;
margin: 0 12px 0 0 !important;
padding: 0 24px !important;
}
.asp_text_button {
line-height: 44px !important;
padding: 0 24px !important;
}
This might not work for everthing, but should give you something like this: https://i.imgur.com/3DNcOmV.png