JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<div class="container">
  <div class="row">
    <div class="col-xs-6 featured"></div>
    <div class="col-xs-6">
      <div class="col-xs-6 box"></div>
      <div class="col-xs-6 box green"></div>
      <div class="col-xs-6 box red"></div>
      <div class="col-xs-6 box blue"></div>
    </div>
  </div>
  <br>
  <div class="row">
    <div class="col-xs-6 featured"></div>
    <div class="col-xs-6">
      <div class="col-xs-6 box"></div>
      <div class="col-xs-6 box green"></div>
      <div class="col-xs-6 box red"></div>
      <div class="col-xs-6 box blue"></div>
    </div>
  </div>
</div>

CSS

.featured {
  height: 200px; 
  background: #95a5a6;
}

.box {
  height: 100px;
  background: #bdc3c7;
}

.green {
  background: #2ecc71
}

.red {
  background: #e74c3c
}

.blue {
  background: #3498db;
}