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Free

Multi-Level Accordion with Left Plus Trigger for Ark UI

Help topics with a plus before the title. Account starts open, and its articles expand on their own.

Account, Billing, Integrations, and Security. A plus before each topic turns into a minus, and Account starts open. Articles such as Changing your email open on their own.

Use it for a help center that reads like a tree. If you need selection as well as opening, use a Tree View. In React, Ark UI does not open those articles for you.

Preview

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Installation

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Anatomy

Accordion anatomy: root, item, item trigger, item content, item indicator

Usage

<Accordion className="w-full max-w-md -space-y-px" defaultValue={["account"]}>
  {topics.map((topic) => (
    <AccordionItem
      className="overflow-hidden border bg-background first:rounded-t-lg last:rounded-b-lg"
      key={topic.value}
      value={topic.value}
    >
      <AccordionTrigger className="px-4 py-3 hover:no-underline **:data-[slot=accordion-trigger-icon]:hidden">
        <span className="flex w-full items-center gap-3">
          <span className="relative size-4 shrink-0">
            <PlusIcon
              aria-hidden="true"
              className="absolute inset-0 size-4 text-muted-foreground transition-opacity duration-200 group-aria-expanded/accordion-trigger:opacity-0"
            />
            <MinusIcon
              aria-hidden="true"
              className="absolute inset-0 size-4 text-muted-foreground opacity-0 transition-opacity duration-200 group-aria-expanded/accordion-trigger:opacity-100"
            />
          </span>
          <span className="flex-1 text-start">{topic.title}</span>
        </span>
      </AccordionTrigger>
      <AccordionContent className="p-0">
        {topic.articles.map((article) => (
          <Collapsible
            className="border-t bg-accent px-4 py-3"
            key={article.title}
          >
            <CollapsibleTrigger className="group flex gap-2 text-start font-medium">
              <ChevronDownIcon
                aria-hidden="true"
{/* The rest of the file is under Installation. */}

FAQ

How does the plus end up before the parent title?

The plus and minus sit in a relative size-4 box, the first child of a gap-3 row, with the title after it in flex-1 text-start. **:data-[slot=accordion-trigger-icon]:hidden hides the built-in chevron. group-aria-expanded/accordion-trigger fades the plus out and the minus in over duration-200, and both icons are aria-hidden.

What toggles an article?

Each article is a Collapsible inside AccordionContent. Its ChevronDownIcon sits on CollapsibleTrigger and uses group-aria-expanded:rotate-180 with duration-200.

How are the article rows styled?

AccordionContent is p-0. Each Collapsible has border-t and bg-accent, and CollapsibleContent uses ps-6 with text-sm text-muted-foreground.

Why does Account start open?

defaultValue={["account"]} opens Account on first render. The string matches that item's value.

Do the articles start open?

No. Each Collapsible renders closed until its trigger is pressed. Account starts open, so Changing your email and Resetting your password show as titles.

How do I let several parent sections stay open at once?

One open item is the default. Add multiple to Accordion to let several stay open, and list every item that should start open in the defaultValue array.

API Reference

Accordion

Sets defaultValue={["account"]} and value={topic.value}. The rest is on the Accordion page.

Collapsible

No extra props in this demo. The rest is on the Collapsible page.

All 21 accordion examples