canvas {
    width: 100%;
    height: 100%;
    background: #000;
}

body, html {
    height: 100%;
    margin: 0;
}

h1 {
    background: #111;
    color: #666;
    font-family: 'Rubik', sans-serif;
    text-align: center;
    margin: 0;
    padding: 1.25em;
}