.newsletter-mock-success {
  width: 100%;
  margin: 12px 0 0;
  padding: 11px 14px;
  color: #123d28;
  background: #e7f7ed;
  border: 1px solid #80bd98;
  border-radius: 5px;
  font-size: 13px;
  line-height: 1.4;
}

.newsletter-mock-success[hidden] {
  display: none;
}