Accessible Vanilla JS Accordion Using CSS Transition


An accordion can be accessed using a CSS transition to expand and contract. Song statuses are added automatically.

This plugin is a fully accessible, seamless animated accordion component that expands and collapses accordion panels using CSS3 transitions.

How to make use of it:

1. Install & download.

$ npm install vanilla-js-accordion --save

2. Import the Accordion.js into the doc.

<link rel="stylesheet" href="accordion.css" />
<script src="accordion.js"></script>

3. Build the HTML to your first accordion.

<div class="Accordion Example">
  <div class="item" data-status="disabled">
    <div class="target" tabindex="0">Title 1</div>
    <div class="panel">
      Panel 1
  <div class="item" data-status="disabled">
    <div class="target" tabindex="0">Title 2</div>
    <div class="panel">
      Panel 2
  <div class="item" data-status="disabled">
    <div class="target" tabindex="0">Title 3</div>
    <div class="panel">
      Panel 3

4. Initialize the accordion with default choices.

var accordion = new Accordion('.Example');

5. The generated HTML markup must be like these:

<div class="Accordion Example" role="tablist" aria-multiselectable="true">
  <div class="item" data-status="expanded">
    <div class="target" role="tab" aria-expanded="true" tabindex="0" id="Accordion-1-1">Title 1</div>
    <div class="panel" role="tabpanel" aria-hidden="false" aria-labelledby="Accordion-1-1">
      Panel 1
  <div class="item" data-status="contracted">
    <div class="target" role="tab" aria-expanded="false" tabindex="0" id="Accordion-1-2">Title 2</div>
    <div class="panel" role="tabpanel" aria-hidden="true" aria-labelledby="Accordion-1-2">
      Panel 2
  <div class="item" data-status="contracted">
    <div class="target" role="tab" aria-expanded="false" tabindex="0" id="Accordion-1-3">Title 3</div>
    <div class="panel" role="tabpanel" aria-hidden="true" aria-labelledby="Accordion-1-3">
      Panel 3

6. Override the default settings to customize the accordion.

var accordion = new Accordion('.Example',{

    // default selectors
    item: '.item',
    target: '.target',
    control: '.target',
    panel: '.panel',

    // allows multiple panels to open at a time
    allowMultiple: true,

    // default attribute
    attribute: 'data-status',

    // default values the data-status attribute
    expanded: 'expanded',
    contracted: 'contracted',

    // CSS prefix
    prefix: 'Accordion-',

    // config the CSS transitions here
    transition: 'height .3s',

    // auto set focus to the accordion
    // none, item, panel, target, control, first
    setFocus: 'none',

    // enable URL hash
    hashEnabled: true


7. API strategies.

// toggle an accordion panel

// expand an accordion panel

// collapse an accordion panel

// collapse all accordion panels

// destroy the accordion instance

Accessible Accordion With JavaScript And CSS3, accordion Plugin/Github

See Demo And Download

Official Website(TheC2Group): Click Here

This superior jQuery/javascript plugin is developed by TheC2Group. For extra Advanced usage, please go to the official website.