| Length sizes: | Notes |
| points (pt) | 1 point equals 1/72 inch |
| pixels (px) | 1 pixel equals 1 screen pixel |
| millimeter (mm) | |
| centimeters (cm) | |
| inches (in) | |
| picas (pc) | 1 pica equals 12 points |
| em (em) | 1 em is equal to the width of a capital M in a font |
| ex (ex) | 1 ex is equal to the height of the lower-case x in a font |
Absolute units include inches, millimeters, centimeters, points, and picas.
Relative units include em, ex and pixels.
Depending on the attribute negative (-10pt) and decimal (1.2em) values can be used.
|
