#board{width:705px;height:659px;background-image:url(img/board.png);position:relative;margin:auto}.board_with_arrows{cursor:pointer}.marble{width:48px;height:48px;background-image:url(img/marbles.png);position:absolute}.marble_color_000000{background-position:0 0}.marble_color_ffffff{background-position:-48px 0}.own_marble{cursor:pointer}.canBeSelected{filter:brightness(150%);opacity:.8}.marble_selected_mark{width:48px;height:48px;background-image:url(img/marbles.png);position:absolute;top:0;left:0;background-position:-96px 0;display:none}.marble_selected .marble_selected_mark{display:block}.marble_selected{filter:brightness(170%)}.arrow{width:39px;height:39px;background-image:url(img/arrow.png);position:absolute;display:none;cursor:pointer}