أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
All are unit of length used to define size of elements.
px = Relative to the viewing device.
em = Relative to the font-size of the element (2em means 2 times the size of the current font).
rem = Relative to font-size of the root element.
The em and rem units are best in creating scalable layout.
