JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html>
<head>
 <title>Zentrieren</title>
 <style>
  div {
   width: 200px;
   border: 1px solid red;
   margin: 0 auto;
  }
 </style>
</head>
<body>
 <div>Ein bisschen Text</div>
</body>
</html>