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="vertical-align-wrap">
    <div class="vertical-align vertical-align-middle">
      
      <div class="col-md-6">
      <p>Hello</p>
      <p>Hello</p>
      <p>Hello</p>
      </div>
      
      <div class="col-md-6">
      <p>Hello</p>
      </div>
    
    </div>
  </div>
</div>

CSS

html, body { 
    margin: 0; 
    padding: 0; 
    width: 100%; 
    height: 100%;
}

.container {
  height: 80%
  position: relative;
  text-align: center;
}

.vertical-align-wrap {
  position: absolute;
  width: 100%;
  height: 100%;
  display: table;
}

.vertical-align {
  background: white;
  display: table-cell;
}

.vertical-align-middle {
  vertical-align: middle;
}