.t-form__successbox,
.js-successbox,
.t-form-success-popup {
  background: #F5F1EA !important;
  color: #4D473B !important;
  border: 1px solid #CFC4B3 !important;
  border-radius: 18px !important;
  box-shadow: none !important;
}

.t-form__successbox *,
.js-successbox *,
.t-form-success-popup * {
  color: #4D473B !important;
}