.error_msg {
  border-bottom: 2px solid red !important;
}
 
.field-error {
  display: block;
  margin-top: 6px;
  color: #ff6b6b;
  font-size: 12px;
  line-height: 1.4;
}
 
button.btn {
  border: 0;
  cursor: pointer;
  appearance: none;
}