header.php

<header>
    <div class=" jumbotron" style="background: linear-gradient(0deg,#023e8a,#c77dff,#3c096c);">
        <h1 class="font-weight-bold text-center display-4">E-coPef</h1>
        <nav class="navbar navbar-expand-lg navbar-light bg-light">
            <div class="container-fluid">
                <a class="navbar-brand" href="#">Navbar</a>
                <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
                    <span class="navbar-toggler-icon"></span>
                </button>
                <div class="collapse navbar-collapse" id="navbarSupportedContent">
                    <ul class="navbar-nav me-auto mb-2 mb-lg-0">
                        <li class="nav-item">
                            <a class="nav-link active" aria-current="page" href="catalogue.php">Catalogue</a>
                        </li>
                        <li class="nav-item">
                            <a class="nav-link" href="basket.php">Panier</a>
                        </li>
                        <li class="nav-item">
                            <a class="nav-link" href="#">Panier Vide</a>
                        </li>


                    </ul>

                </div>
            </div>
        </nav>
    </div>
</header>