index.php

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- Add your head content here -->
    <title>Shoppify</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
    <link rel="stylesheet" href="css/index.css">
</head>

<body>
    <div class="header-container">
        <?php include 'templates/header.php'; ?>
    </div>

    <div class="page-content">
        <!-- Rest of the page content goes here -->
        <h1>Welcome to Shoppify</h1>
        <p>Register or Login to Enjoy your shopping.</p>
    </div>

    <script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.5.2/js/bootstrap.min.js"></script>
</body>

</html>