Display calibration (1:1)

Hold a physical reference against the screen and adjust the bar until both ends match exactly. Browser zoom must be 100 %; the calibration is only valid for this display, this zoom and this device pixel ratio. DPI declarations are not trusted (spec 001 US8).

reference ID-1 card width (credit card) — 85.60 mm ID-1 card height — 53.98 mm ruler — 100 mm ruler — 200 mm name

←/→ 0.5 px, shift 5 px

save calibration