Design the narrow state deliberately
Navigation, comparison tables, forms, filters and calls to action often need a new composition, not only smaller dimensions.
The experience should remain understandable when space, input method, connection quality and user context change.

Content priority
Flexible components
Touch and keyboard
Device testing
Navigation, comparison tables, forms, filters and calls to action often need a new composition, not only smaller dimensions.
Images need appropriate crops, sizes and alternatives. Decorative motion should respect reduced-motion preferences.
Long titles, validation errors, empty states, larger text and real device widths reveal problems that ideal mockups hide.
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