JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
<div class="row">
    <div class="col-md-12 div-container">
        <div class="row">
            <div class="col-md-2 left">
                   test          
            </div>           
        </div>
    </div>
</div>

CSS

.left {
    border-style: solid;
    height: 100%;
}

.div-container {
    border-style: solid;
    height: 500px;
}