JSFiddle - React, Tailwind, and code Playground
HTML
<div>Non main content</div>
<div id="main_content">Main content</div>
JavaScript
$(document).ready(function () {
$('#main_content').mouseenter(function () {
$(document).keypress(function (e) {
var code = e.keyCode || e.which;
if (code == 40) {
alert("button Down");
return false;
}
});
}).mouseleave(function () {
$(document).on("keypress", function () {});
});
});