body {
    background-color: #f4f4f4;
    font-family: monospace;
    color: #333;
    text-align: center;
    margin-top: 100px;
}
.container {
    display: inline-block;
    padding: 20px;
    border: 1px solid #ddd;
    background: #fff;
    box-shadow: 0 0 10px rgba(0,0,0,0.05);
}
.green {
    color: green;
    font-weight: bold;
}