body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f0f0;
}
#game-container {
    text-align: center;
    border: 2px solid #333;
    padding: 20px;
    border-radius: 10px;
    background-color: #fff;
    width: 300px;
}
#room-controls input, #room-controls button {
    margin: 5px 0;
    display: block;
    width: 100%;
}