<nav class="navbar navbar-expand-lg navbar-light bg-light mb-3">
    <div class="collapse navbar-collapse" id="navbarNav">
        <ul class="navbar-nav">
            <li class="nav-item active">
                <a class="nav-link" href="#listeParametre">Liste des paramètres</a>
            </li>
            <li class="nav-item active">
                <a class="nav-link" href="#ajouterParametre">Ajouter un paramètre</a>
            </li>
            <li class="nav-item active">
                <a class="nav-link" href="#listeScript">Scripts</a>
            </li>
        </ul>
    </div>
</nav>

<div class="alert-wrapper">
    <?php

    global $msg;

    if(isset($msg) && $msg != ''){
        echo $msg;
    }
    ?>
</div>