#captcha div, #rc-imageselect {
    -webkit-transform: scale(0.80);
    -moz-transform:    scale(0.80);
    -ms-transform:     scale(0.80);
    -o-transform:      scale(0.80);
    transform:         scale(0.80);

    -webkit-transform-origin: 0 0;
    -moz-transform-origin: 0 0;
    -ms-transform-origin: 0 0;
    -o-transform-origin: 0 0;
    transform-origin: 0 0;
}

@media (max-width: 640px){ #captcha div, #rc-imageselect {
    margin: 0;
}}




.logo-opcionb img {
    width: 100%;
}
.logo-opcionb {
    position: absolute;
    right: 20%;
    max-width: 450px;
    top: 50%;
}

@media (max-width: 1400px) {
.logo-opcionb {
    max-width: 300px;
}
    
}
@media (max-width: 1280px) {
.logo-opcionb {
    position: absolute;
    right: 20%;
    max-width: 270px;
}
    
}
@media (max-width: 1120px) {
.logo-opcionb {
    display: none;
}
    
}