.snackbar {
    visibility: hidden;
    min-width: 250px;
    background-color: #2C2C2C;
    color: #fff;
    text-align: center;
    border-radius: 8px;
    padding: 8px;
    position: fixed;
    z-index: 10001;
    left: 50%;
    bottom: 30px;
    transform: translate(-50%, 0%);
}

    .snackbar.show {
        visibility: visible;
        -webkit-animation: fadein 0.5s, fadeout 0.5s 2.5s;
        animation: fadein 0.5s, fadeout 0.5s 2.5s;
    }

@media (max-width: 959px) {

    button#btnClickToCall {
        z-index: 98 !important;
    }
}

@-webkit-keyframes fadein {
    from {
        bottom: 0;
        opacity: 0;
    }

    to {
        bottom: 30px;
        opacity: 1;
    }
}

@keyframes fadein {
    from {
        bottom: 0;
        opacity: 0;
    }

    to {
        bottom: 30px;
        opacity: 1;
    }
}

@-webkit-keyframes fadeout {
    from {
        bottom: 30px;
        opacity: 1;
    }

    to {
        bottom: 0;
        opacity: 0;
    }
}

@keyframes fadeout {
    from {
        bottom: 30px;
        opacity: 1;
    }

    to {
        bottom: 0;
        opacity: 0;
    }
}