@media only screen and (min-width:40px) {
    #subCodesPopup {
        z-index: 3000;
        position: relative;
        overflow: hidden;
        width: 100%;
        height: 100%;
        padding-top: 0%;
    }

    #subCodesIframe {
        position: absolute;
        top: 0;
        left: 0;
        bottom: 0;
        right: 0;
        width: 100%;
        height: 100%;
    }
}

@media only screen and (min-width:990px) {
    #subCodesPopup {
        position: absolute;
        z-index: 3000;
        top: 20%;
        left: 45%;
        width: 450px;
        height: 625px;
        display: none;
        overflow: hidden;
    }

    #subCodesIframe {
        width: 420px;
        height: 625px;
    }
}