@media only screen and (max-width: 480px) {
    .Logo { box-sizing: border-box; padding: 10px; display: block; width: 100%; float: none; text-align: center; }
    .Logo .logo { height: auto; width: 100%; display: block; }
    .Logo .logo img { max-width: 100%; height: auto; max-height:inherit;}
}