Accordion

A vertically stacked set of interactive headings that each reveal a section of content.

Installation

Install the following dependencies.

pnpm add @radix-ui/react-accordion

Copy and paste the following code into your project.

"use client";

import * as React from "react";
import * as AccordionPrimitive from "@radix-ui/react-accordion";
import { ChevronDownIcon } from "lucide-react";

import { cn } from "~/utils/tailwind";

const Accordion = AccordionPrimitive.Root;

const AccordionItem = React.forwardRef<
  React.ElementRef<typeof AccordionPrimitive.Item>,
  React.ComponentPropsWithoutRef<typeof AccordionPrimitive.Item>
>(({ className, ...props }, ref) => (
  <AccordionPrimitive.Item
    ref={ref}
    className={cn("border-b last:border-none", className)}
    {...props}
  />
));
AccordionItem.displayName = "AccordionItem";

const AccordionTrigger = React.forwardRef<
  React.ElementRef<typeof AccordionPrimitive.Trigger>,
  React.ComponentPropsWithoutRef<typeof AccordionPrimitive.Trigger>
>(({ className, children, ...props }, ref) => (
  <AccordionPrimitive.Header className="flex">
    <AccordionPrimitive.Trigger
      ref={ref}
      className={cn(
        "flex flex-1 items-center justify-between py-4 text-3.5 font-medium [&[data-state=open]>svg]:rotate-180",
        className,
      )}
      {...props}
    >
      {children}
      <ChevronDownIcon
        size={16}
        className="shrink-0 text-muted-foreground transition-transform duration-150"
      />
    </AccordionPrimitive.Trigger>
  </AccordionPrimitive.Header>
));
AccordionTrigger.displayName = AccordionPrimitive.Trigger.displayName;

const AccordionContent = React.forwardRef<
  React.ElementRef<typeof AccordionPrimitive.Content>,
  React.ComponentPropsWithoutRef<typeof AccordionPrimitive.Content>
>(({ className, children, ...props }, ref) => (
  <AccordionPrimitive.Content
    ref={ref}
    className="overflow-hidden text-3.5 data-[state=closed]:animate-accordion-up data-[state=open]:animate-accordion-down"
    {...props}
  >
    <div className={cn("pb-4", className)}>{children}</div>
  </AccordionPrimitive.Content>
));

AccordionContent.displayName = AccordionPrimitive.Content.displayName;

export { Accordion, AccordionItem, AccordionTrigger, AccordionContent };

Update the import paths to match your project setup.

Add the following animations to your tailwind.config.ts file.

/** @type {import('tailwindcss').Config} */
module.exports = {
  theme: {
    extend: {
      keyframes: {
        "accordion-down": {
          from: { height: "0" },
          to: { height: "var(--radix-accordion-content-height)" },
        },
        "accordion-up": {
          from: { height: "var(--radix-accordion-content-height)" },
          to: { height: "0" },
        },
      },
      animation: {
        "accordion-down": "accordion-down 0.2s ease-out",
        "accordion-up": "accordion-up 0.2s ease-out",
      },
    },
  },
}

Usage

import {
  Accordion,
  AccordionContent,
  AccordionItem,
  AccordionTrigger,
} from '~/components/ui/Accordion';
<Accordion type="single" collapsible>
  <AccordionItem value="item-1">
    <AccordionTrigger>Is it accessible?</AccordionTrigger>
    <AccordionContent>
      Yes. It adheres to the WAI-ARIA design pattern.
    </AccordionContent>
  </AccordionItem>
</Accordion>