Typography
CSS Font Size
Adjusting Font Sizes
CSS font sizes use px, rem, or % for responsive typography.
Understanding CSS Font Size Units
CSS font sizes can be specified in various units, each having its own use case and behavior. The most commonly used units are pixels (px), rems (rem), and percentages (%). Choosing the right unit is crucial for creating a responsive and accessible design.
Pixels (px)
Pixels are a fixed unit of measurement that offer precise control over font size. They are best used when you need consistency across different browsers and devices, as they render exactly as specified.
Example:
Root em (rem)
The rem unit is relative to the root element (usually the <html> element) font size. It provides scalability and a more flexible approach for responsive design.
Example:
Percentages (%)
Percentage units are relative to the parent element's font size. They can be useful for scaling text in relation to its container.
Example:
Choosing the Right Unit
When to use each unit depends on the context:
- px: Use for precise control and when consistency is key.
- rem: Use for a responsive design that scales with the user's settings and provides accessibility.
- %: Use for scaling fonts relative to their parent elements, especially when working with nested elements.
Combining these units effectively can lead to a highly responsive and user-friendly website.
Typography
- Previous
- Font Family
- Next
- Font Weight
