.icheckbox_flat {
    background-position: 0 0;
}
    .icheckbox_flat.checked {
        background-position: -22px 0;
    }
    .icheckbox_flat.disabled {
        background-position: -44px 0;
        cursor: pointer;
    }
    .icheckbox_flat.checked.disabled {
        background-position: -66px 0;
    }

.iradio_flat {
    background-position: -88px 0;
}
    .iradio_flat.checked {
        background-position: -110px 0;
    }
    .iradio_flat.disabled {
        background-position: -132px 0;
        cursor: pointer;
    }
    .iradio_flat.checked.disabled {
        background-position: -154px 0;
    }