body {
    font-family: Arial, sans-serif;
    text-align: center;
}

#game {
    margin: auto;
    width: 80%;
    max-width: 600px;
}

#options li {
    list-style-type: none;
    margin: 5px;
    padding: 10px;
    background-color: #f0f0f0;
    border: 1px solid #ddd;
    cursor: pointer;
}

#options li:hover {
    background-color: #e9e9e9;
}