JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Документ без названия</title>
<script type="text/javascript">
function clock() {
var now = new Date();
var hours = now.getHours();
var minutes = now.getMinutes();
var seconds = now.getSeconds();
var input = document.getElementById("clock");
input.innerHTML = hours+':'+minutes+':'+seconds;
timeId = setTimeout('clock()', 1000);
}
</script>
</head>
<body onLoad="pusk();">
<canvas id="clock_2" width="500" height="300"></canvas><br/>
    <p id="clock"></p><a onClick="stop_1()" href="#">Stop</a>&nbsp;&nbsp;<a onClick="pusk()" href="#">Pusk</a>&nbsp;&nbsp;<a onClick="delta(20)" href="#">Bigger</a>&nbsp;&nbsp;<a onClick="delta(-20)" href="#">Smaller</a>
<script>
    var canvas = document.getElementById('clock_2');
    var obCanvas = canvas.getContext('2d');
    function initContext () {
        obCanvas.strokeStyle = 'red';
        obCanvas.fillStyle = "#fff";
        obCanvas.lineWidth = 1;
    }
    initContext();
    function delta (value) {
        canvas.width += value;
        canvas.height += value;
        preScale(initContext, seconds);
    }
    function preScale (initFn, drawFn) {
        var cx = 125, cy = 75; // Условный центр координат а также половина ширины и высоты
        var aspect = Math.min(canvas.width / cx / 2, canvas.height / cy / 2);
        initFn();
        obCanvas.save();
        obCanvas.scale(aspect, aspect);
        obCanvas.translate(
            (canvas.width / aspect) / 2 - cx,
            (canvas.height / aspect) / 2 - cy);
        drawFn();
        obCanvas.restore();
    }
    function minutes() {
        var now = new Date();
        var minutes = now.getMinutes();
        obCanvas.moveTo(125, 75);
        var x = -Math.round(45*Math.sin(-minutes/9.5))+125;
        var y = -Math.round(45*Math.cos(-minutes/9.5))+75;
        obCanvas.lineTo(x, y);
        obCanvas.stroke();
        obCanvas.closePath();
    }
    function hours()...