JSFiddle - React, Tailwind, and code Playground

HTML

<div class="sss">
<h2>Текст</h2>
</div>

CSS

.sss{
  text-align: center;
}
h2 {
  display: inline-block;
}
h2:after, h2:before {
  left: 0;
  right: 0;
  width: auto;
}