td.Xd {color: #844} /* deprecated */
td.Xr {color: #888} /* reserved (digraph reverse or proposal) */
.dimap td.Xr {background: #EEE} /* reversed digraph */
td.Xd {color: #844} /* deprecated */
td.Xr {color: #888} /* reserved (digraph reverse or proposal) */
.dimap td.Xr {background: #EEE} /* reversed digraph */