JSFiddle - React, Tailwind, and code Playground

HTML

<div id="box" class="active">
  <div id="przycisk">
    przycisk
  </div>
</div>

CSS

.active {
  color: red;
}

JavaScript

$(document).ready(function() {
  $("#przycisk").click(function() {
    $("#box").removeClass('active');
  });
});