.l3 {background: #AAA; color: #000}
.l4 {background: #DDD; color: #000}
.l5 {background: #EEE; color: #000}
+.ex {color: #888} /* experimental, disfavoured */
.p0:not(.p) {color: #888; opacity: 1}
.p0:not(.p).l0 {color: #DDD}
border-color: #888;
}
-.Co {background: #FFF} /* private */
+.Co, .Xi.Co {background: #FFF} /* private */
/* code syntax */
#source pre { color: #444 }