JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.1.0/bootstrap.min.js"></script>
<div class="container-fluid">
    <div class="row">
        <div class="span2">Nested row. This column should NOT be stacked on small devices.</div>
        <div class="span4">Nested row. This column should NOT be stacked on small devices.</div>   
    </div>
</div>

CSS

@import url('http://twitter.github.com/bootstrap/assets/css/bootstrap.css');
@import url('http://twitter.github.com/bootstrap/assets/css/bootstrap-responsive.css');


.span2 {
    border: 1px solid black;
    min-height: 100px;
    padding: 10px;
    width: 60px;
}