JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://getbootstrap.com/2.3.2/assets/css/bootstrap.css">
<div class="row-fluid">
    <div class="span4">Some text 1</div>
    <div class="span4">Some text 2</div>
    <div class="span4">Some text 3</div>
</div>
<div class="row-fluid">
    <div class="span4">Some text 4</div>
    <div class="span4">Some text 5</div>
    <div class="span4">Some text 6</div>
</div>

CSS

.row-fluid { display: inline-block; width: 50%; float: left; }
.row-fluid [class*="span"] { float: none; }