html { -ms-touch-action: none; } body, canvas, div { -moz-user-select: none; -webkit-user-select: none; -ms-user-select: none; -khtml-user-select: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); } body { position: absolute; top: 0; left: 0; width: 100%; height: 100%; padding: 0; border: 0; margin: 0; cursor: default; color: #888; background-color: #333; text-align: center; font-family: Helvetica, Verdana, Arial, sans-serif; display: flex; flex-direction: column; } #Cocos2dGameContainer { position: absolute; margin: 0; overflow: hidden; left: 0px; top: 0px; display: -webkit-box; -webkit-box-orient: horizontal; -webkit-box-align: center; -webkit-box-pack: center; }