JSFiddle - React, Tailwind, and code Playground

HTML

<head>
    <script>
        
    </script>
</head>
<body><table><tr><td>this</td></tr></table></body>

JavaScript

var ar = document.querySelectorAll("td");
        for (var i=0; i< ar.length; i++) {
            ar[i].addEventListener("click", function() { this.style.background = '#000000'; }, false);
        }