<!DOCTYPE html>
<html>
<head>
<style>
div::before { content: "FAIL"; display: block; width: 100px; height: 50px; background: red; }
div::BEFORE { content: "PASS"; background: green; color: green; }
div::after { content: "FAIL"; display: block; width: 100px; height: 50px; background: red; }
div::AfTEr { content: "PASS"; background: green; color: green; }
</style>
</head>
<body>
<div></div>
</body>
</html>
