pt vs px vs em
pt : 1 inch = 72 pts, 1 inch = 6picas, 1 pica = 12 points.
px : One px is equal to pixel computer screen.
em : An em is equal to the current font-size.
CSS
Published on Aug 21, 2016
pt : 1 inch = 72 pts, 1 inch = 6picas, 1 pica = 12 points.
px : One px is equal to pixel computer screen.
em : An em is equal to the current font-size.