units
em
(`M' の幅), ex
(`x' の高さ),
pt
(0.351mm), pc
(4.2mm), mm
, cm
, in
(25.4mm), sp
(0.54
mm),
bp
(0.353mm), cc
(4.51mm), Q
(0.25mm), H
(0.25mm). zw
*, zh
*(日本語文字の幅/高さ). \fill
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