JSFiddle - React, Tailwind, and code Playground

HTML

<div class="row">
  <div class="block col-sm-2 ml-sm-auto mr-sm-auto"> Here </div>
</div>

CSS

@import 'https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css';

.block {
  height: 50px;
  background-color: navy;
  color: white;
  text-align: center;
  line-height: 50px;
}