body {
    font-family: Arial, sans-serif;
    background: #f5f5f5;
}

.container {
    max-width: 800px;
    margin: 40px auto;
    background: white;
    padding: 30px;
    border-radius: 10px;
}

#banner {
    padding: 20px;
    border-radius: 8px;
    font-size: 20px;
}

.service {
    padding: 15px;
    margin: 10px 0;
    border-radius: 8px;
    background: #eee;
}

.online {
    border-left: 8px solid green;
}

.offline {
    border-left: 8px solid red;
}