SiteNav

Fixed left global nav rail: sections expand inline via native <details>/<summary> (no JS required); collapses to an off-canvas drawer below `sm`.

Navigation

Default

Active section

Section without a top link

Many sections (scrolling rail)

Source

<SiteNav sections={sections} />

Injected into the previews above. SiteNav

/* Live CSS — edits inject into every preview above.
   Try overriding a component utility, e.g.:
   .btn { letter-spacing: 0.04em; } */