<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>dir() selector</title>
<style>
:not(:-moz-dir(rtl)) + div { color: blue }
div { color: lime; text-align: left; }
</style>
</head>
<body>
<div dir="rtl">This element is rtl.</div>
<div>This element has default direction.</div>
</body>
</html>