JSFiddle - React, Tailwind, and code Playground

HTML

<table id="display"></table>

CSS

td {
    width: 30px;
    font-size: 20px;
    font-family: sans-serif;
    text-align: right;
}

JavaScript

var array_s = [];
var display = document.getElementById('display');
function init(n) {
    var tr = document.createElement('tr');
    display.appendChild(tr);
    for(var i = 0; i < n; i++) {
        var val = Math.random()*59 ^ 0, 
            td = document.createElement('td');
        array_s.push(val);
        td.textContent = val;
        tr.appendChild(td);
    }
}

function update() {
    for (var i = 0; i < array_s.length; i++) {
        var result = array_s[i],
            td = display.firstChild.childNodes[i];
        result--;                // decrement each value
        if(result < 0) {         // check for values < 0
            result = 59;
        }
        array_s[i] = result;     // update values
        
        td.textContent = result;
    }
}

init(7);
setInterval(update, 200);