.pole {
 font-size: 30px; border-style:solid; border-color: white; border-width:1px; width:50px; height:50px; text-align: center; color: black; border-collapse:collapse;
}

.pb {
 border-bottom-color: #BCBCBC;
}


.pr {
 border-right-color: #BCBCBC;
}