The HH 212 protostellar system as observed by ALMA (Codella et al. 2014). The colour scale represents the C³⁴S (7–6) emission close to the systemic velocity (the white contour is the 5σ level). Blue and red contours show the blue- and red-shifted SiO(8–7) jet at ±8 km s^-1 from the systemic velocity. Green contours show the integrated emission of the 7₁–6₁-A, ν_t = 0 CH₃OH line (from 10σ, 90 mJy beam^-1 km^-1 s, in steps of 10σ). The red square marks the peak of the continuum emission (Lee et al. 2014). The filled ellipse shows the synthesised beam.