JSFiddle - React, Tailwind, and code Playground

by MikeIn

HTML

<div class="Link-Box">
  <a href="#" class="S-Btn">Show spoiler Alert</a>
</div>
<br>
<div class="Spoiler-Box">
  <h3>
Title
</h3>
  <p>
    Something Something in the text area.
  </p>
</div>

CSS

/*
  Coded for help asked here (In general): https://forums.digitalpoint.com/threads/adding-hidden-text-to-a-simple-html-document.2776440/
*/

.Spoiler-Box {
  display: none;
  width: 50%;
  margin: 0 auto;
  background: #CCFFFF;
  text-align: center;
  padding: 6px;
}

.SB-Disp {
  display: block !important;
}

.Link-Box {
  text-align: center;
}

a,
a:hover,
a:active {
  text-decoration: none;
}

JavaScript

$('.S-Btn').on('click', function(e) {
  $('.Spoiler-Box').toggleClass("SB-Disp");
});