Dani L. answered • 09/04/19
Tutor
New to Wyzant
Graphic designer & Web Developer
Em is your declaration for responsive font sizes. Em is a flexible declaration that changes based on the base em size of the OS or Browser. 2em will be double the 1em no matter what the base em is set at. So if your base em is 12px, your 1em will be 12px. Your 2em will be double that at 24px. You can also use decimals when working with the em declaration.
