.popup-fade {
    display: none;
}
.popup-fade:before {
    content: '';
    background: #000;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    opacity: 0.7;
    z-index: 9999;
}
.popup {
    position: fixed;
    top: 20%;
    left: 50%;
    padding: 20px;
    width: 360px;
    margin-left: -200px;
    background: #fff;
    border: 1px solid orange;
    border-radius: 4px;
    z-index: 99999;
    opacity: 1;
}
.popup-close {
    position: absolute;
    top: 10px;
    right: 10px;
}

@media (max-width: 600px)  and (min-width: 500px){
    .popup {
        left: 55%;
    }
}

@media (max-width: 500px)  and (min-width: 370px){
    .popup {
        left: 55%;
    }
}

@media (max-width: 370px)  and (min-width: 330px){
    .popup {
        left: 65%;
        width: 290px;
    }
}

@media (max-width: 330px)  and (min-width: 300px){
    .popup {
        top: 13%;
        left: 70%;
        width: 260px;
        font-size: 11px;
    }
}

@media (max-width: 300px)  and (min-width: 280px){
    .popup {
        top: 13%;
        left: 74%;
        width: 260px;
        font-size: 11px;
    }
}

@media (max-width: 280px)  and (min-width: 245px){
    .popup {
        top: 13%;
        left: 83%;
        width: 230px;
        font-size: 11px;
    }
}