JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<div class="container">
  <div class="row">
    <div class="left col-xs-8">.col-xs-8<br>.col-xs-8<br>.col-xs-8</div>
    <div class="right col-xs-4">.col-xs-4<br>.col-xs-4<br>.col-xs-4</div>
  </div>
  <div class="row">
    <div class="right col-xs-4">.col-xs-4<br>.col-xs-4<br>.col-xs-4</div>
    <div class="left col-xs-8">.col-xs-8<br>.col-xs-8<br>.col-xs-8</div>
  </div>
</div>

SCSS

.container {
  max-width: 300px;
}

.left {
  background-color:#CCC;
}

.right {
  background-color:#DDD;
}