header{
    background-color: rgb(50, 58, 58);
    text-align: center;
    justify-content: center;
    justify-self: start;
}
nav ul{
    text-align: center;
    justify-content: center;
}
body{
    background-color: aliceblue;
    background-image: url(WhatsApp\ Image\ 2025-12-08\ à\ 19.28.28_bcda2a78.jpg);
    margin:0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
    background-size: cover;
    background-position: center;
    color: azure;
    text-align: center;
    height: 100px;
}

    nav{
        background: rgba(red, green, rgba(0, 0, 255, 0.425), alpha);
        padding: 40Spx;
         
    }
nav ul{
    list-style-type: none; 
    display: flex;
    justify-content: center;
    gap: 30px;
    padding: 0px;
    margin: 0px;
}