JSFiddle - React, Tailwind, and code Playground

by Slico

HTML

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Document</title>
</head>
<body>
  <ul>
    <li>This is a ::before</li>
    <li>This is a ::before</li>
    <li>This is a ::before</li>
    <li>This is a ::before</li>
  </ul>
</body>
</html>

CSS

ul li::before{
  content: "Written with before: ";
  background-color: Tomato;
  font-weight: bold;
}