.reference-heading {
  max-width:900px;
  margin-bottom:36px;
}
.reference-heading h1 {
  margin-top:20px;
}
.reference-heading p a {
  text-decoration:underline;
  text-underline-offset:4px;
}
.reference-manual {
  max-width:1000px;
  margin-inline:auto;
}
.reference-manual > .toc-tabs {
  margin-top:0;
}
.reference-manual .toc-tabs a {
  text-decoration:none;
}
.reference-chapter {
  min-width:0;
  padding-top:12px;
  padding-bottom:36px;
  border-bottom:1px solid var(--border-strong);
}
.reference-chapter:last-child {
  padding-bottom:0;
  border-bottom:0;
}
.reference-chapter > h2 {
  margin-top:24px;
}
.reference-chapter > p {
  margin-top:18px;
}
.reference-chapter > .callout,
.reference-chapter > .table-scroll {
  margin-top:26px;
  margin-bottom:26px;
}
.reference-chapter .callout p {
  margin-top:8px;
}
@media (max-width:640px) {
  .reference-heading {
    margin-bottom:28px;
  }
  .reference-chapter {
    padding-top:8px;
    padding-bottom:28px;
  }
  .reference-chapter > h2 {
    margin-top:20px;
  }
}