* {
    padding: 0;
    margin: 0
}
body {
    background-color: #0c0c0c;
}
canvas {
    position: absolute;
    margin: auto;
    display: block;
    top: 0px;
    bottom: 0px;
    left: 0px;
    right: 0px;
    width: 100%;
    height: 100%;
}