.archive-masthead {
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 2 * clamp(18px, 5vw, 68px)), calc(1160px - 2 * clamp(18px, 5vw, 68px)));
  margin: 0 auto;
  padding: 32px 0 20px;
  border-bottom: 1px solid #bbc5bf;
  color: #17211b;
  font: 600 12px monospace;
  letter-spacing: 1px;
}
.archive-masthead b {
  padding: 6px 9px;
  background: #184D40;
  color: #f3f6f4;
}
main > .archive-masthead { width: 100%; padding-top: 0; }
@media (max-width: 760px) {
  .archive-masthead { padding-top: 20px; }
}