body {
    font-family: sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f0f0;
}

.container {
    text-align: center;
}

#numbers {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

#numbers span {
    display: inline-block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border-radius: 50%;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    font-weight: bold;
}