* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
body {
    background-color: #E7DDA9;
    text-align: center;
}
canvas {
    position: absolute;
    top: 50%;
    left: 50%;
    image-rendering: pixelated;
    transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
}