canvas {
    width: 100vw;
    height: 100vh;
}

body, html {
    margin: 0;
    padding: 0;
    overflow: hidden;
}
.hud {
    position: fixed;
    top: 0;
    left: 0;
    background: rgba(255, 255, 255, 0.7);
    color: rgb(0, 0, 0);
    font-family: monospace;
    padding: 10px;
    min-width: 200px;
    min-height: 50px;
    font-size: 32px;
}