1markClass macron <anchor 0 (wght=200:150 wght=900:152)> @MC_top; 2 3lookup one { 4 pos base a 5 <anchor 0 0> mark @MC_top; 6} one; 7lookup two { 8 pos base a 9 <anchor 0 0> mark @MC_top; 10} two; 11