JSFiddle - React, Tailwind, and code Playground
HTML
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
<p>Press mouse and release here.</p>
</body>
</html>
JavaScript
$("p").mouseup(function(){
$(this).append('<span style="color:#F00;">Mouse up.</span>');
}).mousedown(function(){
$(this).append('<span style="color:#00F;">Mouse down.</span>');
});