JSFiddle - React, Tailwind, and code Playground

HTML

<input type="button" onclick="javascript:toggle()" value="Toggle visibility">
<div id="showhide" style="display: block">
    This text can be shown or hidden
</div>

JavaScript

window.toggle = function() { 
    // get the Div 
    var myDiv = document.getElementById('showhide');

    // now toggle the visibility, depending on current state
    if (myDiv.style.display == 'block') { 
      // Div is visible. hide it
      myDiv.style.display = 'none';
    } else { 
      // Div is hidden. show it 
      myDiv.style.display = 'block';
    }
  }