JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://cdn.ractivejs.org/edge/ractive.js"></script>
<main></main>

<script id='template' type='text/ractive'>
    <p>Hello, {{ swaggify(name) }}!</p>
</script> 
<abcd>

CSS

body {
    font-family: 'Helvetica Neue', arial, sans-serif;
    font-weight: 200;
    color: #353535;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 200;
}

JavaScript

var helpers = Ractive.defaults.data;
helpers.swaggify = swaggify;

var binding = new Ractive({
    el: 'main',
    template: '#template',
    data: {
        name: 'mike'
    }
});

binding.reset();

binding.data.name = 'steve';
binding.update();

function swaggify ( str ) {
    return 'SWAG' + str;
}