JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
 <div class="row">
    <div class="col-sm-2 container" >
      <span>Case Number</span>
    </div>
</div>

CSS

.container {
  background: #ddd;
  display: inline-block;
}