#onlineCounter {
    background-color: #f0fff0;
    border: 2px solid #4CAF50;
    border-radius: 8px;
    padding: 10px 20px;
    display: inline-block;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    font-family: 'Segoe UI', sans-serif;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.03); }
    100% { transform: scale(1); }
}