JSFiddle - React, Tailwind, and code Playground

HTML

<button type="button" id="but" >Open Popup</button>

<div id="dialogForm">
    <form id="myform" method="post">
        Name:
        <input type="text"/><br/>
        Phone:
        <input type="text"/><br/>
        <button type="submit"> Submit </button>
    </form>
</div>

JavaScript

$('#but').click(function() {
    $("#dialogForm").dialog("open");
});
    $("#dialogForm").dialog({
        modal: true,
        autoOpen: true,
        show: {effect: "blind", duration: 800}
    });