JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
<h1>
Container for testing purposes. Below content will show/hide upon button click
</h1>
<p id="added-value-1">
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam dapibus maximus mattis. Nam id gravida lorem, ac egestas nunc. Proin ullamcorper gravida odio et vulputate. Quisque eleifend finibus ante, tincidunt varius nibh tristique id. In suscipit sit amet leo non vulputate. Maecenas eu tellus maximus, hendrerit augue ac, consectetur tortor. Vestibulum fringilla sapien sit amet commodo ullamcorper.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam dapibus maximus mattis. Nam id gravida lorem, ac egestas nunc. Proin ullamcorper gravida odio et vulputate. Quisque eleifend finibus ante, tincidunt varius nibh tristique id. In suscipit sit amet leo non vulputate. Maecenas eu tellus maximus, hendrerit augue ac, consectetur tortor. Vestibulum fringilla sapien sit amet commodo ullamcorper.
</p>
</div>

<a href="#added-value-1" id="expand-btn-1" title="Expand">Expand</a>

CSS

body {
  font-family:'Trebuchet MS', sans-serif;
  font-size:0.5em;
  text-align:center;
}

.container {
  padding:1em;
  margin:0 auto;
  background:#efefef;
}

#added-value-1 {
  display:none;
}

#added-value-1:target {
  display:block;
}

#expand-btn-1 {
  margin:2em auto;
  text-align:center;
  padding:1em 2em;
  font-weight:bold;
  background:orange;
  display:inline-block;
}