*:active{-webkit-tap-highlight-color:rgba(0,0,0,0);-moz-tap-highlight-color:rgba(0,0,0,0);tap-highlight-color:rgba(0,0,0,0)}body{background-color:#000;margin:0;overflow:hidden}#main_canvas_container{position:absolute;left:0;top:0;width:100%;height:100%}