body {
    color: silver;
}
canvas {
    margin: auto;
    box-shadow: inset 0 0 20px 10px black;
    transition: opacity 8s, background-color 0.5s;
}
h3 {
    color: "#f77";
    transition: opacity 8s;
}
.gameview {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}