JSFiddle - React, Tailwind, and code Playground

by Mac1ovin

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js">

</script>

<script src="data:text/javascript;charset=UTF-8,$(function() { $('#open').click(function() { $('.modal').show(); $('body').addClass('button'); }); $('#close').click(function() { $('.modal').hide(); $('body').removeClass('button'); }); });">
</script>

<button id="open">Открыть</button>
<button id="close">Закрыть</button>

<div class="modal">Содержимое контента</div>

CSS

.modal {
  display: none;
}

body.button #open {
  display: none;
}