.div_none{
    border: 1px solid #eeeeff;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    position: absolute;
}

.div_black{
    border: 1px solid #2F4F4F;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: #dddddd; /*#2F4F4F	DarkSlateGray	暗瓦灰色/暗石板灰*/
    /*position: absolute;*/
}

.div_white{
    border: 1px solid #dddddd;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: #FFFFFF;
    /*position: absolute;*/
}

.div_point_valid{
    border: 1px solid #FF7F50; /* 珊瑚 */
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background-color: #FFA07A; /* 浅鲑鱼肉色 */
    /*position: absolute;*/
    margin-left: 13px;
}

.div_boad_h{
    border: 1px solid #dddddd;
    width: 210px;
    height: 0px;
    position: absolute;
}
.div_boad_v{
    border: 1px solid #dddddd;
    width: 0px;
    height: 210px;
    position: absolute;
}
td{
    width: 35px;
    height: 35px;
    background-color: #FFF8DC;
}
table{
    border-color: #F0FFF0; /*border-color: #fefefe;  #F0FFF0	Honeydew	蜜色/蜜瓜色 */
}