*{box-sizing:border-box}#game{width:100%;height:100%;position:absolute;user-select:none;-ms-user-select:none;-webkit-user-select:none;-khtml-user-select:none;-moz-user-select:none;-webkit-touch-callout:none;-webkit-user-drag:none}canvas{user-select:none;-ms-user-select:none;-webkit-user-select:none;-khtml-user-select:none;-moz-user-select:none;-webkit-touch-callout:none;-webkit-user-drag:none;-ms-transition-property:all;-ms-transition-duration:1s;-ms-transition-timing-function:ease}#gameArea{position:absolute;left:50%;top:50%}body{background-size:cover;width:100%;height:100%;background:#fff}canvas{image-rendering:optimizeSpeed;margin:0;padding:0;border:0}:-webkit-full-screen #canvas{width:100%;height:100%}:-webkit-full-screen{width:100%;height:100%}