.notify-popup-div {
    z-index: 1000;
    position: fixed;
    width: 290px;
    height: 50px;
    bottom: -75px;
    right: 5px;
    background-color: #505050;
    color: white;
    border-radius: 4px;
    padding: 10px;
    font-size: 11px;
    font-family: tahoma;
    animation: fly-and-go 3s;   /* Specify the animation */
    border-top: 2px solid white;
    border-left: 2px solid white;
    border-bottom: 2px solid black;
    border-right: 2px solid black;
    opacity: 0.8;
}

.notify-popup-div.ok {
    background-color: darkgreen;
}

.notify-popup-div.ko {
    background-color: darkred;
}

    @keyframes fly-and-go {
        0% {
        }
        15% {
            bottom: 22px;
            opacity: 0.8;
        }
        85% {
            bottom: 22px;
            opacity: 0.8;
        }
        100% {
            bottom: 22px;
            opacity: 0;
        }
    }