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

body {
    position: relative;
    touch-action: manipulation;
}

#viewport {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #000;
}

#game-shell {
    position: absolute;
    left: 50%;
    top: 50%;
    transform-origin: center center;
    will-change: transform;
}

#frame {
    position: relative;
    width: 1024px;
    height: 768px;
    overflow: hidden;
    background: #000;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

#gameCanvas {
    display: block;
    width: 1024px;
    height: 768px;
}

#debug {
    position: absolute;
    z-index: 10;
    left: 0;
    top: 0;
    background: #000;
    color: #fff;
}