body{margin:0;padding:0}#map{position:absolute;width:100%;height:100%;overflow:hidden}#ui{position:absolute;width:100%;height:100%;overflow:hidden;pointer-events:none}#top-bar{position:absolute;top:5px;left:5px;pointer-events:auto}#top-right-bar{position:absolute;top:5px;right:5px;pointer-events:auto}#bottom-bar{position:absolute;bottom:20px;left:5px;pointer-events:auto}