#messaggio-di-accesso {
  padding: 8px 12px 8px 0px;
}

nav.navbar {
    margin-bottom: 25px;
}

@media (max-width: 576px) {
    #btnLogout {
        margin-top: 10px;
        width: 100%;
    }
}

.file-preview {
    display: flex;
    margin: auto;
    width: 100%;
    height: 100%;
}

@media (min-width: 768px) {
    .modal-body > .file-preview {
        height: 70vh;
    }
}