CodeMirror 2.2: De-emphasize first and last lines
<PhysicalSystem> <Brick> <!-- vector/scalar with the same magnitude (m) --> <Displacement>0.0 m</Displacement> <!-- vector with direction --> <Distance>0.0 m</Distance> <!-- scalar --> <!-- vector/scalar with the same magnitude m/s --> <Velocity>10.0 m/s</Velocity> <!-- vector with direction --> <Speed>0.0 m/s</Speed> <!-- scalar --> </Brick> </PhysicalSystem>
The first and last lines should be de-emphasized {opaque: 0.25;}