html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #1d292c;
    font-family: Arial, sans-serif;

    user-select: none;
    -webkit-user-select: none;
    touch-action: none;
    -webkit-tap-highlight-color: transparent;
}

#application-canvas {
    display: block;
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
}

canvas:focus {
    outline: none;
}