JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div class="row">
        <div class="span4">
            <div class="row">
                <div class="span2">
                    <div class="row">
                        <div class="span1">
                            <p>Bootstrap was made to not only look and behave great in the latest desktop browsers (as well as IE7!), but in tablet and smartphone browsers via responsive CSS as well.</p>
                        </div>
                        <div class="span1">
                            <p>Bootstrap was made to not only look and behave great in the latest desktop browsers (as well as IE7!), but in tablet and smartphone browsers via responsive CSS as well.</p>
                        </div>
                    </div>
                </div>
                <div class="span2">
                    <div class="row">
                        <div class="span1">
                            <p>Bootstrap was made to not only look and behave great in the latest desktop browsers (as well as IE7!), but in tablet and smartphone browsers via responsive CSS as well.</p>
                        </div>
                        <div class="span1">
                            <p>Bootstrap was made to not only look and behave great in the latest desktop browsers (as well as IE7!), but in tablet and smartphone browsers via responsive CSS as well.</p>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        <div class="span4">
            <div class="row">
                <div class="span2">
                    <div class="row">
                        <div class="span1">
                            <p>Bootstrap was made to not only look and behave great in the latest desktop browsers (as well as IE7!), but in tablet and smartphone browsers via responsive CSS as well.</p>
                        </div>
                        <div class="span1">
                            <p>Bootstrap...

CSS

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

[class^="span"] {
    font-size: 11px;
    color: #fff;
    background-color: rgba(255, 0, 0, 0.3);
}