JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/dot-luv/jquery-ui.css">
<div id="calendar"></div>

CSS

td { padding: 4px; border: solid 1px #ddd; }

JavaScript

var week = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"]; 

var row = $('<table><thead><tr></tr></thead></table>').find('tr');
for(var i=0;i<=6;i++) {
    $('<td />', { text: week[i] }).appendTo(row);
}
row.end().appendTo('#calendar');