html, body {margin: 0; padding: 0; }
body {
    width: 100vw;
    height: 100vh;
    padding: 0;
    background: #101115
		display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
canvas,img{
    display: block;
    max-height: 100vh;
    max-width: 100vw;
    margin: 0 auto;
    background: #fff;
}