JSFiddle - React, Tailwind, and code Playground

HTML

<p id ="drawarea"></p>

JavaScript

var html = "";

for(var i = 0;i<100;i++)
    {
        for(var j = 0;j<100;j++)
        {
           html += "<input type = 'checkbox'>";
        }
        html += "<br />";
    }

 document.getElementById('drawarea').innerHTML = html;