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Accordion

A vertically stacked set of expandable sections for FAQs, settings, and content-heavy pages — with the neobrutalist borders-and-shadows treatment.

import {
  Accordion,
  AccordionContent,

The accordion groups related content into vertically stacked, expandable sections — one heading per section, one click to reveal. Built on the Base UI Accordion primitive and styled to the neobrutalist recipe: thick borders, hard shadows, and bold type.

Reach for it when:

  • FAQs — the classic. One question open at a time keeps answers scannable.
  • Settings and filters — collapse rarely-used groups without hiding them.
  • Content-heavy pages — product details, shipping info, changelogs.

Installation

pnpm dlx shadcn@latest add https://neobrutalism.com/r/base/accordion.json
npx shadcn@latest add https://neobrutalism.com/r/base/accordion.json
yarn dlx shadcn@latest add https://neobrutalism.com/r/base/accordion.json
bunx --bun shadcn@latest add https://neobrutalism.com/r/base/accordion.json

Install the following dependencies:

pnpm add @base-ui/react
npm install @base-ui/react
yarn add @base-ui/react
bun add @base-ui/react

Copy and paste the following code into your project.

components/ui/accordion.tsx
"use client"

import * as React from "react"
import { ChevronDownIcon } from "lucide-react"
import { Accordion as AccordionPrimitive } from "radix-ui"

import { cn } from "@/lib/utils"

// Smooth, premium easing for the open/close — fast out of the gate, gentle
// settle. Shared by the panel height and the chevron so they move in lockstep.
const EASE = "ease-[cubic-bezier(0.32,0.72,0,1)]"

function Accordion({
  className,
  ...props
}: React.ComponentProps<typeof AccordionPrimitive.Root>) {
  return (
    <AccordionPrimitive.Root
      data-slot="accordion"
      className={cn("flex w-full flex-col gap-3", className)}
      {...props}
    />
  )
}

function AccordionItem({
  className,
  ...props
}: React.ComponentProps<typeof AccordionPrimitive.Item>) {
  return (
    <AccordionPrimitive.Item
      data-slot="accordion-item"
      className={cn(
        "overflow-hidden rounded border-2 bg-background text-foreground shadow-md transition-shadow duration-200 hover:shadow-sm data-[state=open]:shadow-sm",
        className
      )}
      {...props}
    />
  )
}

function AccordionTrigger({
  className,
  children,
  ...props
}: React.ComponentProps<typeof AccordionPrimitive.Trigger>) {
  return (
    <AccordionPrimitive.Header data-slot="accordion-header" className="flex">
      <AccordionPrimitive.Trigger
        data-slot="accordion-trigger"
        className={cn(
          "flex flex-1 cursor-pointer items-center justify-between gap-4 px-4 py-3 text-left font-head transition-colors hover:bg-muted/50 data-[state=open]:bg-muted/40 focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-primary [&[data-state=open]>svg]:rotate-180",
          className
        )}
        {...props}
      >
        {children}
        <ChevronDownIcon
          aria-hidden
          data-slot="accordion-trigger-icon"
          className={cn(
            "h-4 w-4 shrink-0 text-muted-foreground transition-transform duration-300",
            EASE
          )}
        />
      </AccordionPrimitive.Trigger>
    </AccordionPrimitive.Header>
  )
}

function AccordionContent({
  className,
  children,
  ...props
}: React.ComponentProps<typeof AccordionPrimitive.Content>) {
  return (
    <AccordionPrimitive.Content
      data-slot="accordion-content"
      // Radix publishes the measured height as `--radix-accordion-content-height`
      // and toggles `data-state`. The accordion-down/up keyframes (in
      // shadcn-tailwind.css) interpolate height between that var and 0 for a real
      // slide open/close — the Base UI variant achieves the same via transitions.
      className="group/panel overflow-hidden bg-card font-body text-sm text-muted-foreground data-[state=open]:animate-accordion-down data-[state=closed]:animate-accordion-up"
      {...props}
    >
      <div
        className={cn(
          "px-4 pt-2 pb-4 transition-[opacity,transform] duration-300 ease-out",
          // Fade + nudge the content as the panel opens/closes, synced to the slide.
          "group-data-[state=closed]/panel:-translate-y-1 group-data-[state=closed]/panel:opacity-0",
          "[&_a]:underline [&_a]:underline-offset-3 [&_a]:hover:text-foreground [&_p:not(:last-child)]:mb-4",
          className
        )}
      >
        {children}
      </div>
    </AccordionPrimitive.Content>
  )
}

export { Accordion, AccordionItem, AccordionTrigger, AccordionContent }

Update the import paths to match your project setup.

Usage

import {
  Accordion,
  AccordionContent,
  AccordionItem,
  AccordionTrigger,
} from "@/components/ui/accordion"
<Accordion defaultValue={["item-1"]}>
  <AccordionItem value="item-1">
    <AccordionTrigger>Is it accessible?</AccordionTrigger>
    <AccordionContent>
      Yes. It adheres to the WAI-ARIA design pattern.
    </AccordionContent>
  </AccordionItem>
</Accordion>

Composition

Use the following composition to build an Accordion:

Accordion
├── AccordionItem
│   ├── AccordionTrigger
│   └── AccordionContent
└── AccordionItem
    ├── AccordionTrigger
    └── AccordionContent

Examples

Basic

A basic accordion that shows one item at a time. The first item is open by default.

import {
  Accordion,
  AccordionContent,

Multiple

Use the multiple prop to allow multiple items to be open at the same time.

import {
  Accordion,
  AccordionContent,

Disabled

Use the disabled prop on AccordionItem to disable individual items.

import {
  Accordion,
  AccordionContent,

Borders

Add border to the Accordion and border-b last:border-b-0 to the AccordionItem to add borders to the items.

import {
  Accordion,
  AccordionContent,

Card

Wrap the Accordion in a Card component.

import {
  Accordion,
  AccordionContent,

RTL

To enable RTL support in Neobrutalism.com, see the RTL configuration guide.

"use client"

import * as React from "react"

Accessibility

The accordion follows the WAI-ARIA Accordion pattern: triggers are real buttons wired with aria-expanded and aria-controls, so screen readers announce each section and its state.

Keyboard interactions:

KeyAction
Tab / Shift + TabMove focus between triggers and out
Space / EnterToggle the focused section
ArrowDown / ArrowUpMove focus to the next / previous trigger
Home / EndJump to the first / last trigger

API Reference

See the Base UI documentation for more information.