#oct-banner .button {
    width: 10.2%;
    right: 14.2%;
    height: 17%;
    bottom: 12.5%;
    text-indent: -9999px;
}
@media screen and (max-width: 767px) {
    #oct-banner .button {
        width: 18.7%;
        right: 40.8%;
        height: 7%;
        bottom: 24.3%;
    }
}