Getting StartedInstall and bootstrap headless foundations 4
FormHeadless input and selection contracts 19
LayoutHeadless structural primitives for expandable and container patterns 6
NavigationHeadless trails, trees, menus, and command surfaces 7
OverlayHeadless modal and floating layer behavior 3
FeedbackHeadless notification and status communication patterns 5
UtilityReusable action, identity, and clipboard behavior 6

Examples

Use determinate spinners when a real numeric range exists, then hand off to an indeterminate arc when the work continues without a trustworthy percentage.

Determinate metrics

Track completion of known-duration tasks with owner-authored SVG circles.

Headless determinate spinners (plain CSS)

Upload progress
Quality checks

Indeterminate handoff

Use an indeterminate arc when the work continues but exact completion is unavailable.

Headless handoff spinners (plain CSS)

Preparing release
Rollout