JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
<div id="obchod">
  <p>
    Skrývaný obsah
  </p>
</div>
<a id="trigger" href="#">Zobrazit/skrýt</a>

CSS

#obchod {display: none;}

JavaScript

$(document).ready(function(){
  $('a#trigger').click(function (event) {
    event.preventDefault();
    $('#obchod').toggle(700);
  });
});