* {
    margin: 0;
    padding: 0;
}

html, body {
    margin: 0;
    width: 100%;
    height: 100%;
    position: fixed;
    overflow: hidden;
    background: #000;
}

#game-container > canvas {
    margin: auto;
    position: relative;
    display: block;
    touch-action: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    -ms-interpolation-mode: nearest-neighbor;
    -webkit-transform: translate3d(0, 0, 0);
    -webkit-backface-visibility: hidden;
    transform: translate3d(0, 0, 0);
    backface-visibility: hidden;
}
/* 
#portrait-screen {
    width: 100%;
    height: 100%;
    background: #fff url('images/static/portrait-screen.png') center no-repeat;
    background-size: 70% auto;
}
*/