JSFiddle - React, Tailwind, and code Playground

CSS

table, td {
  border: 1px solid;
  border-collapse: collapse;
}

td {
  width: 80px;
  height: 20px;
}

JavaScript

var table = document.createElement('table');

for (var i = 0; i < 5; i++) {
	var tr = document.createElement('tr');
  
  for (var j = 0; j < 5; j++) {
  	var td = document.createElement('td');
    tr.appendChild(td);
  }
  
  table.appendChild(tr);
}

document.body.appendChild(table);