JSFiddle - React, Tailwind, and code Playground

HTML

<div class="buy">mmm</div>

CSS

body {font-family:Tahoma;color: #fff;font-size: 11px;letter-spacing:1px;}

.buy {
  position:absolute;
  width: 70px;
  height: 25px; /* this is what changes*/
  line-height:25px; /* this what changes */
  top:50px;
  left:50px;
  text-align:center;
  background-color:#bbb;
}