.frbl-toc,
.frbl-toc--collapsible {
--frbl-toc-accent: #0073aa;
box-sizing: border-box;
border: 1px solid rgba(0, 0, 0, 0.1);
border-radius: 4px;
padding: 1em 1.25em;
margin: 0 0 1.5em;
}
.frbl-toc *,
.frbl-toc--collapsible * {
box-sizing: inherit;
}
.frbl-toc__title {
margin: 0 0 0.5em;
font-weight: 600;
}
.frbl-toc--collapsible > summary.frbl-toc__title {
cursor: pointer;
margin: 0;
list-style: none;
}
.frbl-toc--collapsible > summary.frbl-toc__title::-webkit-details-marker {
display: none;
}
.frbl-toc--collapsible > summary.frbl-toc__title::before {
content: '▸';
display: inline-block;
margin-right: 0.4em;
transition: transform 150ms ease;
}
.frbl-toc--collapsible[open] > summary.frbl-toc__title::before {
transform: rotate(90deg);
}
.frbl-toc--collapsible > .frbl-toc__nav {
margin-top: 0.75em;
}
.frbl-toc__list {
margin: 0;
padding: 0 0 0 1.25em;
}
.frbl-toc__list--plain {
list-style: none;
padding-left: 0;
}
.frbl-toc__item {
margin: 0.25em 0;
}
.frbl-toc__item--level-3 {
margin-left: 1em;
}
.frbl-toc__item--level-4 {
margin-left: 2em;
}
.frbl-toc__item--level-5 {
margin-left: 3em;
}
.frbl-toc__item--level-6 {
margin-left: 4em;
}
.frbl-toc__link {
text-decoration: none;
color: inherit;
}
.frbl-toc__link:hover {
text-decoration: underline;
}
.frbl-toc__link[aria-current='location'] {
font-weight: 600;
color: var(--frbl-toc-accent);
}
.frbl-toc__link:focus-visible {
outline: 2px solid var(--frbl-toc-accent);
outline-offset: 2px;
}
.frbl-toc--sticky {
position: sticky;
top: 1em;
max-height: calc(100vh - 2em);
overflow-y: auto;
} [data-frbl-toc-heading]:focus {
outline: 2px solid var(--frbl-toc-accent);
outline-offset: 4px;
}
@media (prefers-reduced-motion: reduce) {
.frbl-toc,
.frbl-toc--collapsible,
.frbl-toc--collapsible > summary.frbl-toc__title::before {
transition: none;
}
html {
scroll-behavior: auto;
}
}