body {
    font-family: Arial, sans-serif;
    background-color: blueviolet;
    text-align: center;
    margin: 0;
    padding: 0;
}

h1 {
    margin-top: 20px;
    font-size: 40px;
    color: brown;
}

canvas {
    border: 2px solid blue;
    background-color: black;
    display: block;
    margin: 20px auto;
}

.game-over {
    color: yellow;
    font-size: 30px;
    margin-top: 50px;
}