.ps-email-validation-message {
  display: block;
  margin: 6px 0 0;
  color: #b42318;
  font: inherit;
  font-size: 13px;
  line-height: 1.5;
}
.ps-email-validation-message:empty { display: none; }
input.ps-email-invalid[aria-invalid="true"] { border-color: #b42318 !important; }