Simple Accordion is a lightweight accordion that uses vanilla JS, and define lists for markup.

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How to make use of it:

1. Include JavaScript accordion.js and stylesheet accordion.css on the page.

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

2. Add a CSS class to the list of definitions.

<dl class="accordion">
  ...
</dl>

3. Add the CSS class accordion title to your accordion header links as follows:

<dl class="accordion">
  <dt>
    <a aria-expanded="fasle" href="#"  tabindex="0">
      <div class="accordion-heading">
        Accordion Header Link.
      </div>
    </a>
  </dt>
  <dd tabindex="0">
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
  </dd>
  <dt>
    <a aria-expanded="fasle" href="#"  tabindex="0">
      <div class="accordion-heading">
        Accordion Header Link
      </div>
    </a>
  </dt>
  <dd tabindex="0">
    <p>Accordion content goes here</p>
  </dd>
  <dt>
    <a aria-expanded="fasle" href="#"  tabindex="0">
      <div class="accordion-heading">
        Accordion Header Link
      </div>
    </a>
  </dt>
  <dd tabindex="0">
    <p>Accordion content goes here</p>
  </dd>
</dl>

4. Override the default styles of the accordion component.

.accordion > dt {
  border: 1px solid black;
  border-bottom: 0;
  padding: 10px;
  position: relative;
}

Accessible Accordion With Vanilla JavaScript, simple accordion Plugin/Github

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Official Website(mwhittaker00): Click Here

This superior jQuery/javascript plugin is developed by mwhittaker00. For extra Advanced Usages, please go to the official website.