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Published: September 10, 2026
An accordion can shorten a long page visually, but it also makes content depend on controls and state. The handoff should cover that behavior alongside the approved copy.
Name every panel
Provide the trigger label, panel content, default open state, and content owner for each item. Decide whether visitors may open several panels at once. Do not use an accordion to hide information people need to compare side by side.
Define navigation behavior
Triggers should be buttons with a programmatically exposed expanded state. Record whether headings wrap the triggers and whether a URL fragment can open a specific panel. If search results link into hidden content, specify how the matching panel becomes visible.
Test real content
Activate every trigger by keyboard and pointer. Check focus visibility, zoom, long labels, nested links, browser Back behavior, and page search. Confirm that opening a panel does not move focus unexpectedly and that collapsed content remains available to assistive technology only when the chosen pattern calls for it.
Further reading
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Keep interaction decisions with the approved accordion copy and component record.
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