Understanding em Units in CSS and what is abbreviation of em? -

having worked in web design , development field , it’s taken me while break free fixed-width, pixel-based designs. although i’ve started doing responsive layouts, i’m still hooked on pixel units. while might fine layout elements, think typography, em unit should go-to unit.

what abbreviation of em ?

an em unit of measurement in field of typography, equal specified point size. name of em related m. unit derived width of capital “m” in given typeface.