/*-------------Customize by Screen Dimensions---------------------*/
@media screen and (orientation:landscape) {
    #sfondo {
        width: 154px;
        height: 200px;
    }
}

/*
    iPhone 5 in portrait & landscape
*/
@media only screen
and (min-device-width : 320px)
and (max-device-width : 568px) {
    #sfondo {
        width: 231px;
        height: 300px;
    }
}

/*
    iPhone 2G-4S in portrait & landscape
*/
@media only screen
and (min-device-width : 320px)
and (max-device-width : 480px) {
    #sfondo {
        width: 231px;
        height: 300px;
    }
}