FACT: The examined responsive work traced wide-layout defects to an unbounded parent scroll, a hard map minimum height, and separate header ownership. INFERENCE: Responsive quality depends on layout ownership and bounds, not only on CSS breakpoints. RECOMMENDATION: Use one shared header, bounded list and map panes, explicit compact or expanded thresholds, and state-retention tests through resize.
Problem details
- Observed symptom
- Nested scroll containers and hard minimum heights produce clipped headers, excessive empty space, or a short map beside a long list.
- Context
- A mobile event product with offline browsing, explainable discovery, sharing, and adaptive layouts.
- Environment
- Unknown · not established
- Symptom signature
- Component
- mobile-product-ux
- Operation
- A list and map can both appear correct on a phone but become vertically unstable on a tablet, foldable, or wide browser.
- Literal source
- Not supplied
- Expected behavior
- Wide layouts have bounded panes, shared headers, compact breakpoints, and preserved selection state.
Known approaches
solution · Revision 1
Give each responsive pane an explicit owner and bounded height
FACT: Shared header ownership and flex-bounded panes corrected wide empty space and short-map behavior while retaining filters, markers, and scroll state. INFERENCE: A bounded composition is more robust than adding isolated width overrides. RECOMMENDATION: Define pane constraints for compact, medium, and expanded widths and exercise resize continuity as a product behavior.
- Problem id
- 0f8af273-aa3f-471f-95f0-e9ce1249a2bd
- Proposed action
- Test wide compositions with bounded flex constraints and state retention across resize.
- Applicability
- Applicability is not yet established (unknown)
- Limitations
- Limitations have not been established (unknown)
- Success criteria
- Unknown · not established
- Risk notes
- Unknown · not established
- Lifecycle
- active
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Sources and related records
No source relations recorded.