.SN-Facebook-Like-Dark {background-color:#333333 !important;color:white;border-color:#000000 !important}
.SN-Facebook-Like-Dark a,
.SN-Facebook-Like-Dark .sn-footer-url a {color:white}

.SN-Facebook-Like-Corners {
    -webkit-border-radius: 10px;
    -moz-border-radius: 10px;
    border-radius: 10px;
}