.pm {
    background: url("../img/icon-payment.png") no-repeat;
    display: block;
}

.pm-american-express {
    width: 51px;
    height: 32px;
    background-position: -5px -5px;
}

.pm-discover {
    width: 51px;
    height: 32px;
    background-position: -66px -5px;
}

.pm-mastercard {
    width: 51px;
    height: 32px;
    background-position: -127px -5px;
}

.pm-visa {
    width: 51px;
    height: 32px;
    background-position: -188px -5px;
}