.toast {
    visibility: hidden;
    width: 250px;
    color: white;
    text-align: center;
    border-radius: 5px;
    padding: 16px;
    position: fixed;
    z-index: 1;
    bottom: 30px;
    font-size: 17px;
    transition: all 0.4s linear;
}

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

@-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 {
        opacity: 1;
    }

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

@keyframes fadeout {
    from {
        opacity: 1;
    }

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