<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <style>
        #digital-clock {
            font-family: 'Courier New', monospace;
            font-size: 3em;
            font-weight: bold;
            color: #333;
            text-align: center;
            padding: 20px;
            background-color: #f0f0f0;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            width: fit-content;
            margin: 0 auto;
        }
    </style>
</head>
<body>

    <!-- Container for the Digital Clock -->
    <div id="digital-clock"></div>

    <script>
        function updateClock() {
            var now = new Date();
            var hours = now.getHours().toString().padStart(2, '0');
            var minutes = now.getMinutes().toString().padStart(2, '0');
            var seconds = now.getSeconds().toString().padStart(2, '0');
            var timeString = hours + ':' + minutes + ':' + seconds;

            document.getElementById('digital-clock').textContent = timeString;
        }

        // Update the clock immediately
        updateClock();

        // Update the clock every second
        setInterval(updateClock, 1000);
    </script>

</body>
</html>