#snackbar {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #333;
    color: #fff;
    padding: 12px 24px;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    border-radius: 4px;
    z-index: 999999;
    min-width: 200px;
    display: none;
}

#snackbar.error {
    background: #ff5722;
}

#snackbar.warning {
    background: #ff9800;
}

#snackbar.info {
    background: #03a9f4;
}

#snackbar.success {
    background: #4caf50;
}

#snackbar.show {
    opacity: 1;
}