* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    user-select: none;
    -webkit-touch-callout: none;    
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

body {
    background-color: #000000;
}

#game-container {
    width: 100%;
    height: 100%;
    display: block;
    position: fixed;
    top: 0;
    left: 0;
}

canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}