JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<div class="accordion" id="accordion1">
  <div class="accordion-group">
    <div class="accordion-heading">
      <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion1" href="#collapseOne">
      Collapsible Group #1
      </a>
    </div>
    <div id="collapseOne" class="accordion-body collapse in">
      <div class="accordion-inner">
        This is a simple accordion inner content...
      </div>
    </div>
  </div>
  <div class="accordion-group">
    <div class="accordion-heading">
      <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion1" href="#collapseTwo">
        Collapsible Group #2 (With nested accordion inside)
      </a>
    </div>
    <div id="collapseTwo" class="accordion-body collapse">
      <div class="accordion-inner">

        <!-- Here we insert another nested accordion -->

        <div class="accordion" id="accordion2">
          <div class="accordion-group">
            <div class="accordion-heading">
              <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapseInnerOne">
                Collapsible Inner Group Item #1
              </a>
            </div>
            <div id="collapseInnerOne" class="accordion-body collapse in">
              <div class="accordion-inner">
                Anim pariatur cliche...
              </div>
            </div>
          </div>
          <div class="accordion-group">
            <div class="accordion-heading">
              <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapseInnerTwo">
                Collapsible Inner Group Item #2
              </a>
            </div>
            <div...