#background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("https://lh3.googleusercontent.com/pw/AP1GczO4TbNlFxTXxBzIb40R1YMHlOEckwTovu40JsEp8XW6BNV1TCNR59zAk9nQkhWoS5MNZNExM0W16uPq2SQdex8smLlh5aLJboZNaOZ4Dm_AD2KEHA4ceuTSECHsZFQmbPESKZwfFQRBx8YpDKr2RNci=w1737-h977-s-no-gm?authuser=6");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -1; /* Posiziona lo sfondo dietro il contenuto */
}

#header{
       width: auto; /* Larghezza del div */
       height: 250px; /* Altezza del div */
       background-image: url("https://lh3.googleusercontent.com/pw/AP1GczN_5nUsG4BFF4ggFmSRMtaDcWUL9hNoIpFQvvrpSpDAvabBTQfry2EaMGybr7vWC5MkToSrhmobVmbaJR79zL4BAn_vQaGcYJRsEig7Vfgf-gdLqvBcVvn05tnr84XrW-a6HKQQiA6C2hMUJT80CCNx=w1737-h623-s-no-gm?authuser=6"); /* URL dell'immagine */
       background-size: cover; /* Adatta l'immagine al div */
       background-position: center; /* Centra l'immagine */
       background-repeat: no-repeat; /* Non ripetere l'immagine */
       }
       
       
.liste {
    display: flex;
    justify-content: center;
    align-items: center;
       }
    
.liste img {
        margin: 50px;
           }