JSFiddle - React, Tailwind, and code Playground

by Owen Hartley

HTML

<div id="test" style="display:none;" >Shift key is down</div>

JavaScript

document.onmousemove = function(e) {
    e = e || window.event;
    var copyLabel = document.getElementById("test");
    if (e.shiftKey) {
        copyLabel.style.display = "inline";
        ob_copyOnNodeDrop = true;
    }
    else {
        copyLabel.style.display = "none";
        ob_copyOnNodeDrop = false;
    }
}