JSFiddle - React, Tailwind, and code Playground

HTML

<h1>Dynamic List</h1>
<br>
<div id="divDynamic">
    <ol start="1" class="list">
        <li>item</li>
        <li>item</li>
        <li>item</li>
    </ol>
</div>
<br>
<input type="button" value="Renumber Dynamic List" onclick="renumber()"/>

JavaScript

function renumber() {
    var div = document.getElementById("divDynamic");

    var rnd = Math.round(Math.random() * 100);
    alert("Starting at:" + rnd);
    var content = "<ol start='" + rnd + "'><li>item</li><li>item</li><li>item</li><li>item</li><li>item</li></ol>";

    div.innerHTML = content;
}