A standard AccordionGroup that only allows one AccordionItem to be open at once.
html
<AccordionGroup><!-- Open --><AccordionItemopen><svelte:fragmentslot="lead">(lead)</svelte:fragment><svelte:fragmentslot="summary">(summary)</svelte:fragment><svelte:fragmentslot="content">(content)</svelte:fragment></AccordionItem><!-- Closed --><AccordionItem><svelte:fragmentslot="summary">(summary)</svelte:fragment><svelte:fragmentslot="content">(content)</svelte:fragment></AccordionItem></AccordionGroup>
When you don't want an AccordionItem to auto-collapse the other AccordionItems, just set collapse to false.
html
<AccordionGroupcollapse={false}><!-- Open --><AccordionItemopen><svelte:fragmentslot="lead">(lead)</svelte:fragment><svelte:fragmentslot="summary">(summary)</svelte:fragment><svelte:fragmentslot="content">(content)</svelte:fragment></AccordionItem><!-- Closed --><AccordionItem><svelte:fragmentslot="summary">(summary)</svelte:fragment><svelte:fragmentslot="content">(content)</svelte:fragment></AccordionItem></AccordionGroup>