@media (max-width: 768px) {
    /* responsive action dialog */
    #TB_window {
        top: 0;
        left: 0;
        margin-left: 0 !important;
        margin-top: 0 !important;
        width: calc(100% - 20px) !important;
        height: calc(100% - 20px) !important;

    }

    #TB_iframeContent {
        width: 100% !important;
        height: 97% !important;
    }

    .pop_content {
        height: 98%;
    }

}