Dynamic

Em Units vs Percentage Units

Developers should use em units when creating responsive designs that need to scale with user font-size preferences, such as in typography, margins, and padding for text-heavy interfaces meets developers should learn and use percentage units when building responsive web designs that need to adjust fluidly across devices, such as in grid layouts, image sizing, or typography scaling. Here's our take.

🧊Nice Pick

Em Units

Developers should use em units when creating responsive designs that need to scale with user font-size preferences, such as in typography, margins, and padding for text-heavy interfaces

Em Units

Nice Pick

Developers should use em units when creating responsive designs that need to scale with user font-size preferences, such as in typography, margins, and padding for text-heavy interfaces

Pros

  • +They are particularly useful for building accessible websites that respect browser zoom settings and user-defined font sizes, ensuring elements remain proportional and readable across different devices and user configurations
  • +Related to: css, responsive-web-design

Cons

  • -Specific tradeoffs depend on your use case

Percentage Units

Developers should learn and use percentage units when building responsive web designs that need to adjust fluidly across devices, such as in grid layouts, image sizing, or typography scaling

Pros

  • +They are essential for creating flexible components that maintain proportions relative to their containers, improving accessibility and user experience on varying viewports
  • +Related to: css-units, responsive-design

Cons

  • -Specific tradeoffs depend on your use case

The Verdict

Use Em Units if: You want they are particularly useful for building accessible websites that respect browser zoom settings and user-defined font sizes, ensuring elements remain proportional and readable across different devices and user configurations and can live with specific tradeoffs depend on your use case.

Use Percentage Units if: You prioritize they are essential for creating flexible components that maintain proportions relative to their containers, improving accessibility and user experience on varying viewports over what Em Units offers.

🧊
The Bottom Line
Em Units wins

Developers should use em units when creating responsive designs that need to scale with user font-size preferences, such as in typography, margins, and padding for text-heavy interfaces

Disagree with our pick? nice@nicepick.dev