.abby_popup_close-btn {
    position: absolute;
    right: -30px;
    top: 0px;
    margin-right: 4px;
    cursor: pointer;
    background: #ffffff;
    width: 20px;
    height: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    padding-bottom: 3px;
}

@media screen and (max-width: 767px) {
    .modal-dialog {
        margin-top: 40% !important;
    }

    .abby_popup_close-btn {
        right: 0px;
        top: -25px;
    }

}