section.abstract {
    background-color: white;
}

body {
    background-image: url('../img/sfondo.jpg');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

main {
    background-color: transparent !important;
}

section {
    background-color: transparent !important;
    margin: 0em !important;
    padding: 0em !important;
}

div.container {
    background-color: white;
    padding: 1em 1.5em;
}