JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container-fluid">
  <div class="row-fluid">
    <div class="span12">
       <div class="hero-unit">
          <h1>Heading</h1>
          <p>Tagline</p>
          <p>
            <a class="btn btn-primary btn-large">
              Learn more
            </a>
          </p>
        </div>
    </div>
  </div>
</div>
<div class="container">
  <div class="row">
    <div class="span4">
        <h2>Live grid example</h2>
        <p>The default Bootstrap grid system utilizes 12 columns, making for a 940px wide container without responsive features enabled. With the responsive CSS file added, the grid adapts to be 724px and 1170px wide depending on your viewport. Below 767px viewports, the columns become fluid and stack vertically.</p>
    </div>
    <div class="span4">
        <h2>Live grid example</h2>
        <p>The default Bootstrap grid system utilizes 12 columns, making for a 940px wide container without responsive features enabled. With the responsive CSS file added, the grid adapts to be 724px and 1170px wide depending on your viewport. Below 767px viewports, the columns become fluid and stack vertically.</p>
    </div>
    <div class="span4">
        <h2>Live grid example</h2>
        <p>The default Bootstrap grid system utilizes 12 columns, making for a 940px wide container without responsive features enabled. With the responsive CSS file added, the grid adapts to be 724px and 1170px wide depending on your viewport. Below 767px viewports, the columns become fluid and stack vertically.</p>
    </div>
  </div>
</div>

CSS

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