<div class="home">
    <div id="Home_title_ss"><h1>Ajoutez un élève</h1></div>
    <form name="user" action="index.php?uc=gestion&action=validerprofil">
        <input value="nom">
        <input name="prenom">
        <button type="radio" name="classe" value="1">
        <button type="radio" name="classe" value="2">
    </form>
</div>