JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html> 
<html lang="en">

<html>
    <head>
        <meta charset="utf-8" />
        <title>Testing</title>
        <script type="text/javascript" src="http://knockoutjs.com/downloads/knockout-2.2.1.js"></script>
        <script src="http://code.jquery.com/jquery-1.9.0.min.js"></script>
        <script type="text/javascript">
            function TestViewModel() {
                this.Name = ko.observable("Testing");
            }

            $(function() {
                ko.applyBindings(new TestViewModel());
            });
        </script>
    </head>

    <body>
        <h1>Testing Knockout.js</h1>
        <div>
            <div>
                <span data-bind="text: Name"></span>
            </div>
            <div>
                <input type="text" data-bind="value: Name, valueUpdate: 'afterkeydown'"></input>
            </div>
        </div>
    </body>
</html>