What is a Em (em)?
An em is a CSS unit relative to the font size of the parent element, making it useful for scalable component design.
Definition
Symbol
em
Category
CSS Units
System
Digital
1 {unit} = {value} {otherUnit}
1 Em = 16 Pixel (px)
1 Em = 1 Rem (rem)
1 Em = 12 Point (pt)
1 Em = 1 Pica (pc)
1 Em = 0.833333 Viewport Width (vw)
Common Uses
- Relative font sizing
- Component-level spacing
- Responsive padding
