JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/base/jquery-ui.css">
<input id="Text1" type="text" />

CSS

.Highlighted a{
   background-color : Green !important;
   background-image :none !important;
   color: White !important;
   font-weight:bold !important;
   font-size: 12pt;
}

JavaScript

//Code Starts
$(document).ready(function() {
    var SelectedDates = {};
    SelectedDates[new Date('04/05/2012')] = new Date('04/05/2012');
    SelectedDates[new Date('05/15/2012')] = new Date('05/15/2012');   
    SelectedDates[new Date('05/04/2012')] = new Date('05/04/2012');
    SelectedDates[new Date('06/06/2012')] = new Date('06/06/2012');

    $('#Text1').datepicker({
        beforeShowDay: function(date) {
            var Highlight = SelectedDates[date];
            if (Highlight) {
                return [true, "Highlighted", Highlight];
            }
            else {
                return [true, '', ''];
            }
        }
    });
});
//Code Ends