Test length specifications
Images and Figures
scale 100%, no size specification
width 25%, no height, figure width 50%
width 25%, height 16px, figure width 50%
width 10 em, figure width 20 em
width 20 ex, figure width 40 ex
width 15 ch, figure width 30 ch
width 10 rem, figure width 20 rem
width 25 vw, figure width 30 vw
width 25 vh, figure width 30 vh
width 25 vmin, figure width 30 vmin
width 25 vmax, figure width 30 vmax
width 5 cm, figure width 10 cm
width 50 mm, figure width 100 mm
width 200 Q, figure width 400 Q
width 2 in, figure width 4 in
width 12 pc, figure width 24 pc
width 144 pt, figure width 288pt
width 192 px, figure width 384 px
width 192 <no unit>, figure width 384 <no unit>
ch, em, and rem:

Image height 1ch, 1em, and 1rem:

The units "em" and "ch" change with the current font size. The unit "rem" is tied to the document root fontsize.
Tables
value |
unit |
25 |
% |
10 |
em |
20 |
ex |
15 |
ch |
10 |
rem |
25 |
vw |
25 |
vh |
25 |
vmin |
25 |
vmax |
5 |
cm |
50 |
mm |
200 |
Q |
2 |
in |
12 |
pc |
144 |
pt |
192 |
px |
192 |
<no unit> |