JSFiddle - React, Tailwind, and code Playground

HTML

<h1>
Текст заголовка
</h1>

CSS

body {
  max-width: 100px;
}
h1 {
  display: inline;
  padding: 0 10px;
  font-size: 30px;
  line-height: 30px;
  color: #fff;
  background-color: #ee1825;
}