JSFiddle - React, Tailwind, and code Playground

HTML

<html>
<body>
    <p>Not selectable</p>
    <span> selectable</span>
</body>
</html>

JavaScript

$("p")
    .attr("unselectable", "on")
    .css("-moz-user-select", "none")
    .css("-webkit-user-select", "none")
    .css("user-select", "none");