JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.1.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.1.0/css/bootstrap.min.css">
<button class='btn'>Hello</button>

CSS

button {
    white-space: nowrap;
}
body {
    margin: 20px;
}

JavaScript

$('button').click(function() {
    var $button = $(this);
    var width = $button.css('width');
    $button.text('Hello, World!');
    var newWidth = $button.css('width');
    $button.css({'width': width});
    $button.animate({'width': newWidth}, 400);
});