body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f0f0f0;
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.message-box {
    text-align: center;
    background-color: #ffffff;
    padding: 50px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.message-box h1 {
    margin-bottom: 20px;
    font-size: 36px;
    color: #333333;
}

.message-box p {
    font-size: 18px;
    color: #555555;
}