.n0,.n1,.n2,.n3{font-family:arial,tahoma,sans-serif;font-size:9px;color:#000;width:12px;}
.n0{background:#ccc;}.n1{background:#ccc url('japan/icon/v-line.gif') right no-repeat;}
.n2{background:#ccc url('japan/icon/g-line.gif') bottom no-repeat;}.n3{background:#ccc url('japan/icon/angle.gif') right bottom no-repeat;}
.b0{background:#fff;}.b1{background:#fff url('japan/icon/v-line.gif') right no-repeat;}
.b2{background:#fff url('japan/icon/g-line.gif') bottom no-repeat;}.b3{background:#fff url('japan/icon/angle.gif') right bottom no-repeat;}
.bb{background:#000;}.bb0{background:#777;}.bb1{background:#777 url('japan/icon/v-line.gif') right no-repeat;}
.bb2{background:#777 url('japan/icon/g-line.gif') bottom no-repeat;}.bb3{background:#777 url('japan/icon/angle.gif') right bottom no-repeat;}
.b0x{background:url('japan/icon/cross.gif') #fff no-repeat;}.b1x{background:#fff url('japan/icon/v-line-c.gif') right no-repeat;}
.b2x{background:#fff url('japan/icon/g-line-c.gif') bottom no-repeat;}.b3x{background:#fff url('japan/icon/angle-c.gif') right bottom no-repeat;}