.reveal {
  font-size: 30px;
}

.reveal h1 {
  font-size: 2.35em;
}

.reveal h2 {
  font-size: 1.55em;
}

.reveal h3 {
  font-size: 1.2em;
}

.reveal h4 {
  font-size: 1em;
}

.reveal h1,
.reveal h2,
.reveal h3,
.reveal h4 {
  margin-bottom: 0.45em;
}

.reveal p,
.reveal table,
.reveal ul,
.reveal ol,
.reveal pre,
.reveal blockquote {
  margin-top: 0.55em;
  margin-bottom: 0.55em;
}

.site-home {
  position: fixed;
  z-index: 20;
  top: 1rem;
  left: 1rem;
  padding: 0.45rem 0.65rem;
  border: 1px solid rgb(255 255 255 / 28%);
  border-radius: 0.2rem;
  color: rgb(255 255 255 / 72%);
  font: 600 0.7rem/1 ui-sans-serif, system-ui, sans-serif;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  opacity: 0;
  transition: opacity 160ms ease, color 160ms ease;
}

body:hover .site-home,
.site-home:focus-visible {
  color: #fff;
  opacity: 1;
}

.reveal pre code {
  max-height: 34rem;
}

@media (max-width: 640px) {
  .site-home {
    opacity: 0.7;
  }
}