nav.php

<div class="col-md-3">
    <div class="list-group">
         <a href="user_page.php" class="list-group-item list-group-item-action">
            Back
        </a>
		<a href="profile.php" class="list-group-item list-group-item-action">
            Profile
        </a>
        <a href="edit_profile.php" class="list-group-item list-group-item-action">
            Edit Profile
        </a>
        <!-- Add more menu items as needed -->
        <a href="logout.php" class="list-group-item list-group-item-action text-danger">
            Logout
        </a>
    </div>
</div>