.reveal-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--reveal-header-height);
  z-index: var(--reveal-header-z);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none; /* let slide clicks work */
}

.reveal-header .header-text { pointer-events: none; margin: 0 2.5rem;  }
.reveal-header .header-text a,
.reveal-header .header-text a * {
  pointer-events: auto;
}
.reveal-header .header-text a {
  color: inherit;
  text-decoration: none;
}
.reveal-header .header-text a:hover {
  text-decoration: underline;
}
.reveal-header .header-logo { position: fixed; top: .5rem; right: .5rem; pointer-events: auto; }
.reveal-header .header-logo img { max-height: 100px; height: auto; }