Untitled

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>Test</title>
</head>
<body>
    One line of HTML code
    <script>
        // Synchronous delay of 5 seconds
        var timeWhile = new Date().getTime();
        while( new Date().getTime() - timeWhile < 5000 );
    </script>
</body>