body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    text-align: center;
    margin-top: 100px;
}

.game-container {
    background: white;
    display: inline-block;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.2);
}

input {
    padding: 10px;
    font-size: 16px;
    width: 100px;
}

button {
    padding: 10px 15px;
    font-size: 16px;
    margin-left: 10px;
    cursor: pointer;
}

#feedback {
    margin-top: 20px;
    font-size: 18px;
    font-weight: bold;
}