.notification {
    position: fixed;

    bottom: 10px;
    left: 50%;

    transform: translate(-50%, 0);
    margin-left: auto;
    padding: 15px;
    border-radius: 10px;

    transition: opacity 1s ease-in;
    opacity: 0;
}

body.dark > .notification {
    background-color: #202020;
}

body.light > .notification {
    background-color: #cccccc;
    color: black;
}

.notification-show {
    opacity: 100%;
}