body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-image: url('../images/wallpaper-accueil.jpeg');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    background-attachment: fixed;
}

header {
    background-color: #000000;
    color: rgb(255, 255, 255);
    padding: 20px 0;
    text-align: center;
}

header h1 {
    margin: 0;
}

nav {
    display: flex;
    justify-content: center;
    background-color: #000000b7;
}

nav a {
    color: rgb(255, 0, 0);
    padding: 15px 20px;
    text-decoration: none;
}

nav a:hover {
    background-color: #0037ff57;
}

.container {
    background-color: #ffffffb1;
    color: rgb(0, 0, 0);
    padding: 10px;
    max-width: 450px;
}

footer {
    background-color: #000000e3;
    color: rgb(255, 0, 0);
    text-align: center;
    padding: 10px 0;
    bottom: 0;
    width: 100%;
    position: fixed;
}