/* Smartphones ----------- */
@media only screen and (max-width : 960px) {
    #contenuto div.formAccesso fieldset {
        width:96% !important;
    }
}
/* Desktop ----------- */
@media only screen and (min-width : 961px) {
    #contenuto.monocolonna div.formAccesso {
        width:100% !important;
    }
    #contenuto div.formAccesso fieldset {
        width:48% !important;;
        margin:0 1% !important;;
        float:left !important;;
    }
}