-td.l0 {background: #411} /* bmp */
-td.l2 {background: #321} /* proposed digraph */
-td.l4 {background: #330} /* rfc-1345 digraph */
-td.l5 {background: #030} /* ascii */
-td.l6 {background: #00331D} /* ascii */
-td.ex {background: #222} /* disfavoured */
-td.u-invalid {background: #333} /* impossible */
+.l0 {background: #411} /* bmp */
+.l2 {background: #321} /* proposed digraph */
+.l4 {background: #330} /* rfc-1345 digraph */
+.l5 {background: #030} /* ascii */
+.l6 {background: #00331D} /* ascii */
+.ex {background: #222} /* disfavoured */
+.u-invalid {background: #333} /* impossible */