JSFiddle - React, Tailwind, and code Playground

HTML

<p>Date:
    <input type="text" id="datepicker" />
</p>

JavaScript

$("#datepicker").datepicker({
    beforeShow: function (input, inst) {
        setTimeout(function () {
            inst.dpDiv.css({
                top: 100,
                left: 200
            });
        }, 0);
    }
});