JSFiddle - React, Tailwind, and code Playground

HTML

<ul id="tabbez">
  <li><a>1</a></li>
  <li><a>2</a></li>
  <li><a>3</a></li>
</ul>

CSS

*{
  font-family: sans-serif;
}
ul#tabbez li {
  width: 50px;
  height: 50px;
  list-style-type: none;
  background: #222;
  color: #fff;
  text-align: center;
  display: table-cell;
  vertical-align: middle;
  margin: 0px;
  padding-left: 0px;
  border-right: 1px solid #363636;
}