.mark {
  font-size: .8rem;
  font-weight: 650;
  letter-spacing: .04em;
  text-transform: uppercase;
  white-space: nowrap;
}

@media (max-width: 800px) {
  .mark { font-size: .58rem; letter-spacing: .02em; }
  .contact-link { font-size: .53rem; }
}