.custom-uiblock {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 9999;
}

.custom-message {
    position: fixed;
    top: 45%;
    left: 45%;
    transform: translate(-50%, -50%);
    background-color: #000;
    color: #fff;
    padding: 20px;
    border-radius: 5px;
    font-size: 24px;
    animation: pulse 1s infinite; 
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}