What to change
Require only the currently relevant version of duplicated interface content to be available for reading and interaction.
A worked example
Illustrative example
The mobile menu appears once in the available controls, while an inactive desktop navigation copy contributes no second set of identical links.
How to check the result
Accept when responsive variants expose one coherent interface at each size and resizing preserves a usable navigation position.
A mistake to avoid
Making a duplicate transparent or placing it offscreen does not necessarily remove it from keyboard or assistive navigation.
Your action checklist
Use these checks to prepare a discussion with your team or supplier. Tick a check when you have recorded the decision or evidence, rather than when a feature has simply been promised.
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Further reading
These primary sources provide additional context for the project decisions above.
Related decisions
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