<html>
<head>
<style>
body {
/* Set "my-sec-counter" to 0 */
counter-reset: my-sec-counter;
}
h2::before {
/* Increment "my-sec-counter" by 1 */
counter-increment: my-sec-counter;
content: counter(my-sec-counter, upper-roman) ". ";
}
</style>
</head>
<body>
<h2>HTML Tutorial</h2>
<h2>CSS Tutorial</h2>
<h2>JavaScript Tutorial</h2>
<h2>Bootstrap Tutorial</h2>
<h2>SQL Tutorial</h2>
<h2>PHP Tutorial</h2>
</body>
</html>