.BDC_CaptchaDiv {
    margin: 0 auto !important;
}

#captchaCode {
    width: 280px;
    border: 1px solid black;
    border-radius: 7px;
    background: #ffffff;
    background: -moz-linear-gradient(top, #ffffff 0%, #f5f5f5 99%, #d0d0d0 100%);
    background: -webkit-linear-gradient(top, #ffffff 0%,#f5f5f5 99%,#d0d0d0 100%);
    background: linear-gradient(to bottom, #ffffff 0%,#f5f5f5 99%,#d0d0d0 100%);
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffffff', endColorstr='#d0d0d0',GradientType=0 );    
    text-align: center;
}