Stef wrote
> for what is the px unit stand for?
(from tex.stackexchange)
From the plain TeX reference:
• pt: Point
• pc: pica (12 pt)
• in: inch (72.27 pt)
• bp: Big point (72 bp = 1 in)
• cm: Centimeter
• mm: Millimeter
• dd: Didot point
• cc: cicero (12 dd)
• sp: Scaled point (65536 sp = 1 pt), the smallest TeX unit
• ex: Nominal x-height
• em: Nominal m-width
Available in math mode:
• mu: math unit, 1 em = 18 mu, where em is taken from the math symbols
family, various lengths are derived from it (thinspace, thickspace, etc.)
Additionally available in pdfTeX and LuaTeX:
• px: "pixel", the dimension given to the \pdfpxdimen primitive;
default value is 1 bp, corresponding to a pixel density of 72 dpi
Stephan
