.app-popup-overlay{
    display: block;
    position: fixed;
    left:0px;
    top:0px;
    right:0px;
    bottom:0px;
    
    background-color: #000000;
    opacity:0.7;
}

.app-popup-window{
    position: fixed;
    left:0px;
    top:0px;
    right:0px;
    bottom:0px;
    display: flex;
    flex-flow: column nowrap;
    justify-content:  center;
    align-items: center;
}

.app-popup-window > .container{
    position: relative;
    box-shadow: 0px 0px 25px 0px rgba(0,0,0,0.5);
}