body::before {
  content: "⚠ The Site is Under Inspection / Construction ⚠";
  display: block;
  position: sticky;
  top: 0;
  z-index: 99999;
  padding: 10px 16px;
  text-align: center;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  background: #d9230f;
  animation: ijmert-flash 1s steps(2, start) infinite;
}

@keyframes ijmert-flash {
  to { visibility: hidden; }
}