JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<body>
  <h1>Pres Ctrl + z and Ctrl + y</h1>
  <form action="#">
  	<label>TextBox : </label>
	<input id="textA" type="text" size="50" 
          value="Copy, paste or cut message here" />
  </form>
 
  <span></span>
 

</body>

CSS

span{
		color:blue;
	}

JavaScript

$(document).keydown(function(e){
      if( e.which === 89 && e.ctrlKey ){
         alert('control + y'); 
      }
      else if( e.which === 90 && e.ctrlKey ){
         alert('control + z'); 
      }          
});