.viacol-wa-wrap { display:flex; align-items:center; }
.viacol-wa-prefix {
  padding:.375rem .75rem; background:#e9ecef; border:1px solid #ced4da; border-right:0;
  border-radius:.375rem 0 0 .375rem; line-height:1.5;
}
.viacol-wa-wrap > #wpb-booking_question-whatsapp.form-control {
  border-left:0!important; border-radius:0 .375rem .375rem 0;
}