.ik-address-field__zipcity .form-control:first-child {
    width: 85px !important;
    margin-right: -1px;
}

.ik-address-field__zipcity .form-control:first-child:focus {
    z-index: 4;
}

.ik-address-field__zipcity .form-control:last-child {
    width: calc(100% - 84px) !important;
}