JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css">
<div id="side-panel">
    <p>I'm the side panel</p>
</div>
<div id="center-panel" class="container-fluid">
    <p>I'm the center panel</p>
    <div class="row-fluid">
        <div class="span12">
            <p class="large">First row</p>
        </div>
    </div>
    <div class="row-fluid">
        <div class="span12">
            <p class="large">Second row</p>
        </div>
    </div>
</div>

CSS

html, body { height: 100%}

#side-panel {
    float: left;
    width: 100px;
    padding: 10px 20px 10px 20px;
    height: 100%;
    background-color: #1db34f;
    border-right: 1px solid #dddddd;
    text-align: center;
}

#center-panel {
    margin-left: 280px;
    background-color: #ddd;
    text-align: center;
}
#center-panel .row-fluid {overflow: auto;}
#center-panel .large {height: 400px; padding: 10px; background-color: #f17f49}