
PASS Property stroke-opacity value '-1' computes to '0' 
PASS Property stroke-opacity value '0.5' computes to '0.5' 
PASS Property stroke-opacity value '3' computes to '1' 
PASS Property stroke-opacity value '-100%' computes to '0' 
PASS Property stroke-opacity value '50%' computes to '0.5' 
PASS Property stroke-opacity value '300%' computes to '1'