#chessboard table *{font-size:12px;line-height:1em !important;padding:0;font-family:"Microsoft Yahei";color:white;}.error{color:red;font-size:4em;line-height:1.5em;}#toolbar{margin-bottom:30px;}#toolbar button{background-color:gray;color:white;border:none;box-shadow:0 0 5px;padding:5px;cursor:pointer;border-radius:5px;font-weight:bold;font-size:14px !important;}#toolbar button:disabled{opacity:0.5;filter:Alpha(Opacity=50);}#chessboard{width:470px;margin:0 auto;}#chessboard table{border-collapse:collapse;}#chessboard-space{box-shadow:0 0 5px red;margin-left:-15px;margin-top:-450px;}#chessboard-background{top:15px;left:15px;background-color:burlywood;}#chessboard-background td{border:1px solid black;width:30px;height:30px;*height:31px;padding:0 !important;margin:0 !important;}#chessboard-space td{text-align:center;width:31px;height:31px;border:none;padding:0 !important;margin:0 !important;border-radius:15px;}#chessboard-space td:hover{background-color:dodgerblue;cursor:pointer;}.white-chess{background:url("img/white-chess.png") no-repeat -5px -5px;}.black-chess{background:url("img/black-chess.png") no-repeat -5px -5px;}.last-chess .last-chess-point{display:inline-block !important;width:10px;height:10px;border:1px dashed red;display:inline-block;position:relative;top:1px;}.gameover-lay{position:absolute;left:0;top:0;font-size:5em;text-shadow:7px 4px 19px  black;z-index:15px;font-weight:bold;}.gameover-overlay{opacity:0.2;filter:Alpha(Opacity=20);background-color:gray;position:absolute;z-index:10px;}.white-chess .chessboard-important-point,.black-chess .chessboard-important-point,.white-chess .last-chess-point,.black-chess .last-chess-point{display:none;}#toolbar{text-align:center;}.chessboard-important-point{width:5px;height:5px;background-color:red;display:inline-block;position:relative;top:-1px;}.top{margin-bottom:1em;}.switch-lang a{opacity:0.5;filter:Alpha(Opacity=50);text-decoration:none;}a.current-lang{opacity:1;filter:Alpha(Opacity=100);}.top h1{font-family: Arial;font-size: 30px;font-weight: bold;}