JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
<div class="container">
    <div class="row">
<div id="proposalAccordian" class="panel-group">
        <div class="panel panel-default">
            <div class="panel-heading">
                <h4 class="panel-title">
                    <a data-toggle="collapse" data-parent="#proposalAccordian" href="#collapseContact">Contact</a>
                </h4>
            </div>
            <div id="collapseContact" class="panel-collapse collapse in">
                <div class="panel-body">
                    <h1>CONTACT BODY</h1>
                </div>
            </div>
        </div>
        <div class="panel panel-default">
            <div class="panel-heading">
                <h4 class="panel-title">
                    <a data-toggle="collapse" data-parent="#proposalAccordion" href="#collapseProposal">Proposal</a>
                </h4>
            </div>
            <div id="collapseProposal" class="panel-collapse collapse">
                <div class="panel-body">
                    <h1>PROPOSAL BODY</h1>
                </div>
            </div>
        </div>
    </div>
    </div>
    </div>