Svelte Accordion - Flowbite

Use the accordion component to show hidden information based on the collapse and expand state of the child elements using data attribute options

Accordion: View Source Code

AccordionItem: View Source Code

The accordion component is a collection of vertically collapsing header and body elements that can be used to show and hide information based on the Tailwind CSS utility classes and JavaScript from Flowbite.

A popular use case would be the “Frequently Asked Questions” section of a website or page when you can show questions and answers for each child element.

Setup 

<script>
  import { AccordionItem, Accordion } from 'flowbite-svelte'
</script>

Default accordion

Accordion uses the single selection mode by default i.e. it collapses every other child element when expanding a one.

To prevent that behavior set multiple property to true.

<Accordion>
  <AccordionItem>
    <span slot="header">My Header 1</span>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sint explicabo ...</p>
    <p class="text-gray-500 dark:text-gray-400">Check out this guide to learn how to <a href="/" target="_blank" rel="noreferrer" class="text-blue-600 dark:text-blue-500 hover:underline">get started</a> and start developing websites even faster with components on top of Tailwind CSS.</p>
  </AccordionItem>
  <AccordionItem>
    <span slot="header">My Header 2</span>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sint explicabo ...</p>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sint explicabo ...</p>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Learn more about these technologies:</p>
    <ul class="list-disc pl-5 dark:text-gray-400 text-gray-500">
      <li><a href="/" target="_blank" rel="noreferrer" class="text-blue-600 dark:text-blue-500 hover:underline" >Lorem ipsum</a></li>
      <li><a href="https://tailwindui.com/" rel="noreferrer" target="_blank"  class="text-blue-600 dark:text-blue-500 hover:underline">Tailwind UI</a></li>
    </ul>
  </AccordionItem>
</Accordion>

Always open

Use the open prop to make an item open on mount.

<Accordion>
  <AccordionItem open>
    <span slot="header">Header 2-1</span>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sint explicabo ...</p>
  </AccordionItem>
  <AccordionItem>
    <span slot="header">Header 2-2</span>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sint explicabo ...</p>
  </AccordionItem>
</Accordion>

Color option

You can control the look and feel of AccordionItems by overwriting the acctiveClasses and inactiveClasses properties. You can define them in Accordion so that they will apply to all children or set them individually on each AccordionItem.

<Accordion
  activeClasses="bg-blue-100 dark:bg-gray-800 text-blue-600 dark:text-white focus:ring-4 focus:ring-blue-200 dark:focus:ring-blue-800"
  inactiveClasses="text-gray-500 dark:text-gray-400 hover:bg-blue-100 dark:hover:bg-gray-800">
  <AccordionItem class="">
    <span slot="header">Header 2-1</span>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sint explicabo ...</p>
  </AccordionItem>
  <AccordionItem>
    <span slot="header">Header 2-2</span>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sint explicabo ...</p>
  </AccordionItem>
</Accordion>

Flush accordion

Use flush prop to remove the rounded borders.

<Accordion flush>
  <AccordionItem>
    <span slot="header">Header 2-1</span>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sint explicabo ...</p>
  </AccordionItem>
  <AccordionItem>
    <span slot="header">Header 2-2</span>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sint explicabo ...</p>
  </AccordionItem>
</Accordion>

Arrow style

Use the arrowup and arrowdown slots to set up and down icons.

<Accordion>
  <AccordionItem>
    <span slot="header">Header 2-1</span>
    <div slot="arrowup">
      <svg class="w-6 h-6 shrink-0 rotate-180" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"d="M15 13l-3 3m0 0l-3-3m3 3V8m0 13a9 9 0 110-18 9 9 0 010 18z"/></svg>
    </div>
    <span slot="arrowdown">
      <svg class="w-6 h-6 shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 13l-3 3m0 0l-3-3m3 3V8m0 13a9 9 0 110-18 9 9 0 010 18z"/></svg>
    </span>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sint explicabo ...</p>
  </AccordionItem>
  <AccordionItem>
    <span slot="header">Header 2-2</span>
    <div slot="arrowup">
      <svg class="w-6 h-6 shrink-0 rotate-180" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2"d="M15 13l-3 3m0 0l-3-3m3 3V8m0 13a9 9 0 110-18 9 9 0 010 18z"/></svg>
    </div>
    <span slot="arrowdown">
      <svg class="w-6 h-6 shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 13l-3 3m0 0l-3-3m3 3V8m0 13a9 9 0 110-18 9 9 0 010 18z"/></svg>
    </span>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sint explicabo ...</p>
  </AccordionItem>
</Accordion>

Icon Accordion 

<Accordion>
  <AccordionItem>
    <span slot="header" class="text-base flex gap-2">
      <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="w-6 h-6"><path stroke-linecap="round" stroke-linejoin="round" d="M20.25 7.5l-.625 10.632a2.25 2.25 0 01-2.247 2.118H6.622a2.25 2.25 0 01-2.247-2.118L3.75 7.5M10 11.25h4M3.375 7.5h17.25c.621 0 1.125-.504 1.125-1.125v-1.5c0-.621-.504-1.125-1.125-1.125H3.375c-.621 0-1.125.504-1.125 1.125v1.5c0 .621.504 1.125 1.125 1.125z"/></svg>
      <span> My Header 1</span>
    </span>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sint explicabo...</p>
    <p class="text-gray-500 dark:text-gray-400">Check out this guide to learn how to <a href="/" target="_blank" rel="noreferrer" class="text-blue-600 dark:text-blue-500 hover:underline">get started</a> and start  websites even faster with components on top of Tailwind CSS.</p>
  </AccordionItem>
  <AccordionItem>
    <span slot="header" class="text-base flex gap-2">
      <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="w-6 h-6"><path stroke-linecap="round" stroke-linejoin="round" d="M9.75 3.104v5.714a2.25 2.25 0 01-.659 1.591L5 14.5M9.75 3.104c-.251.023-.501.05-.75.082m.75-.082a24.301 24.301 0 014.5 0m0 0v5.714c0 .597.237 1.17.659 1.591L19.8 15.3M14.25 3.104c.251.023.501.05.75.082M19.8 15.3l-1.57.393A9.065 9.065 0 0112 15a9.065 9.065 0 00-6.23-.693L5 14.5m14.8.8l1.402 1.402c1.232 1.232.65 3.318-1.067 3.611A48.309 48.309 0 0112 21c-2.773 0-5.491-.235-8.135-.687-1.718-.293-2.3-2.379-1.067-3.61L5 14.5"/></svg>
      <span> My Header 2</span>
    </span>
    <p class="mb-2 text-gray-500 dark:text-gray-400"> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sintexplicabo...</p>
  </AccordionItem>
</Accordion>

Multiple mode

Example how to use the multiple option together with expand all behavior.

<script>
  import {AccordionItem, Accordion, Button} from 'flowbite-svelte'
  const items = Array(3);
 
  const open_all = () => items.forEach((_,i)=> items[i] = true)
  const close_all= () => items.forEach((_,i)=> items[i] = false)
</script>
<Button on:click={open_all}>Open all</Button>
<Button on:click={close_all}>Close all</Button>
<Accordion multiple>
  <AccordionItem bind:open={items[0]}>
    <span slot="header">My Header 1</span>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sint explicabo ...</p>
    <p class="text-gray-500 dark:text-gray-400">Check out this guide to learn how to <a href="/" target="_blank" rel="noreferrer" class="text-blue-600 dark:text-blue-500 hover:underline">get started</a> and start developing websites even faster with components on top of Tailwind CSS.</p>
  </AccordionItem>
  <AccordionItem bind:open={items[1]}>
    <div slot="header">My Header 2</div>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sint explicabo ...</p>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Illo ab necessitatibus sint explicabo ...</p>
    <p class="mb-2 text-gray-500 dark:text-gray-400">Learn more about these technologies:</p>
  </AccordionItem>
  <AccordionItem bind:open={items[2]}>
    <div slot="header">My Header 3</div>
    <p>Something more</p>
  </AccordionItem>
</Accordion>

Props

The component has the following props, type, and default values. See types page for type information.

Accordion

Name Type Default
multiple boolean false
flush boolean false
activeClasses string 'bg-gray-100 dark:bg-gray-800 text-gray-900 dark:text-white focus:ring-4 focus:ring-gray-200 dark:focus:ring-gray-800'
inactiveClasses string 'text-gray-500 dark:text-gray-400 hover:bg-gray-100 hover:dark:bg-gray-800'
defaultClass string 'text-gray-500 dark:text-gray-400'

AccordionItem

Name Type Default
open boolean false
activeClasses string | undefined undefined
inactiveClasses string | undefined undefined
defaultClass string 'flex items-center justify-between w-full font-medium text-left group-first:rounded-t-xl'

Slots

Accordion

Name Description
default Place for AccordionItems

AccordionItem

Name Description
default Item body slot
header Item header slot
arrowup Icon to close an accordion item
arrowdown Icon to open an accordion item

References

Flowbite Accordion