* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    text-align: center;
}

h1 {
    margin-bottom: 20px;
    color: #333;
}

#gameBoard {
    display: block;
    border: none;
    background-color: #fff;
    max-width: 100%;
    height: auto;
}