.login_logo {
    background-image: url('../resources/images/siaxma_logo.gif') !important;
    height: 70px;
    width: 312px;
    background-repeat:no-repeat;
    margin: 2% auto;
    position: relative;
}

td.login_logo {
    background-image: url('../resources/images/siaxma_logo.gif') !important;
    height: 70px;
    width: 30%;
    background-repeat:no-repeat;
    margin: 2% auto;
    position: relative;
}