JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html lang="en">

<head>
	<meta charset="utf-8" />
	<meta content="width=device-width" name="viewport" />
	<title></title>
	<link href="img/favicon.png" rel="icon" type="image/png">
	<link href="https://cdnjs.cloudflare.com/ajax/libs/flipclock/0.7.8/flipclock.css" rel="stylesheet">
</head>

<body>
					<div class="timer_cover">
						<div class="timer"></div>
					</div>

	<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/flipclock/0.7.8/flipclock.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-cookie/1.4.1/jquery.cookie.min.js"></script>
	<script src="js/main.min.js"></script>
</body>

</html>

CSS

.timer_cover {
    height: 100%;
    width: 100%;
    display: block;
    text-align: center;
}

.timer {
    width: 370px;
    height: 80px;
    display: inline-block;
    pointer-events: none
}

JavaScript

$(function () {
    countDown = function () {
        var t = Math.round(new Date / 1000),
            e = $(".timer").FlipClock({
                countdown: !0,
                callbacks: {
                    init: function () {
                        if (!$.cookie("endDate")) {
                            var t = Date.now() + 10000;
                            $.cookie("endDate", Math.round(t / 1e3))
                        } 
                    },
                    destroy: function() {
                        var t = Date.now() + 10000;
                        $.cookie("endDate", Math.round(t / 1e3))
                    },
                    start: function() {
                        var t = Date.now() + 10000;
                        $.cookie("endDate", Math.round(t / 1e3))
                    },
                    interval: function () {
                        Math.round(new Date / 1e3), e.getTime().time
                    },
                    stop: function () {
                        $.removeCookie("endDate"), countDown()
                    }
                }
            });
            n = $.cookie("endDate") - t;
            if (n <= 0) n = 10 + (n % 10)  
        		e.setTime(n);
            e.setCountdown(!0);
            e.start()
    },  countDown()
});