JSFiddle - React, Tailwind, and code Playground

HTML

<div class="navigation"> 
<div class="navigation_inner"> 
   <a class="active" href="index.html">1</a>
   <a href="index.html">2</a>
   <a href="index.html">3</a>
   <a href="index.html">4</a> 
</div> 
</div>

CSS

.navigation {
  float: left;
  height: 160px;
  position: relative;
  width: 24px;
  text-align: center;
  display: table;
  _position: relative; 
  overflow: hidden;
  border: 1px solid black;
}
.navigation_inner {
  _position: absolute; 
  _top: 50%; 
  display: table-cell; 
  vertical-align: middle;
}    
.navigation a {
  display: block;
}