JSFiddle - React, Tailwind, and code Playground

HTML

<p>
  Hands-On with
  <span class="dropdown">
    <button type="button" class="dropbtn">Ultrahaptics'</button>
    <a href="#home" class="dropdown-content hide">Feel of touch without wearing devices</a>
  </span>
  gave us a feel of technology of future.
</p>
<p>
  Hands-On with
  <span class="dropdown">
    <button type="button" class="dropbtn">Ultrahaptics'</button>
    <a href="#home" class="dropdown-content hide">Feel of touch without wearing devices</a>
  </span>
  gave us a feel of technology of future.
</p>

CSS

.dropdown-content{
  position:absolute;
  background:#000;
  color:#fff;
}
.hide{
  display:none;
}

JavaScript

$('.dropbtn').click(function(){
	$(this).siblings('.dropdown-content').toggleClass('hide');
});