.logoBig {
    background: url("myartwork_350.png") no-repeat !important;
    left: 0px !important;
    background-size: 245px !important;
    height: 70px !important;
}

.logoSmall {
    background: url("myartwork_350.png") no-repeat !important;
    background-size: 140px !important;
    width: 140px !important;
    height: 40px !important;
}