.wpcf7-not-valid-tip,
.input-not-valid {
  display: block;
  font-size: 12px;
  position: absolute;
  padding: 5px 10px;
  text-align: center;
  bottom: calc(100% - -4px);
  background: #fff;
  border: 1px solid #dc3232;
  border-radius: 5px;
  z-index: 8;
}

.wpcf7-form-control-wrap{
  position: relative;
}