JSFiddle - React, Tailwind, and code Playground

HTML

<dl class="accordion">
<dt><a href="" class="heading">Signage</a></dt>
<dd>
    <p>bla</p>
</dd>

<dt><a href="" class="heading">Signage2</a></dt>
<dd>
    <p>bla</p>
</dd>
</dl>

JavaScript

(function($) {
    var allPanels = $('.accordion > dd').hide();
    $('.accordion > dt > a').click(function() {
        allPanels.slideUp();
        if ($(this).parent().next().is(":visible")) return false;
        $(this).parent().next().slideDown();
        return false;
    });
    $('.accordion > dt > a').first().trigger('click');
})(jQuery);