Supplemental descriptions and link previews whose required information stays visible.
Semantic page baseline
The route renders authored landmarks, headings, content, and ordinary destinations.
Interactive Surfaces components
Tooltip
A short optional text description attached to an already complete native button or link.
Hover Card
A noninteractive preview that enriches a complete ordinary link.
Support and exact fallback
| Feature | Locked-engine evidence | When missing |
|---|---|---|
| Semantic page baseline | Controller and static-export tests exercise the same closed route. | Without optional gallery presentation, complete content and ordinary destinations remain in document order. |
Without optional gallery presentation, complete content and ordinary destinations remain in document order.