.mailchimp-fields :focus {
    outline: none !important;
}
.mailchimp-fields .input-group-field {
    border-radius: .25rem;
}
.mailchimp-fields .input-group-btn {
    font-size: 13px;
    min-width: 170px;
    min-height: 35px;
    line-height: 35px;
}
.mailchimp-fields .seventy-five-percent {
    width: 75%;
}