flexible-typography

Accessible typography uses rem-based sizing and scalable line heights to adapt to user settings, ensuring readability across responsive layouts. You apply relative units like rem and em instead of px for font sizes.

Using rem for font sizes ensures text scales appropriately when users adjust browser settings, whereas px creates fixed dimensions. This relative unit maintains readable typography and WCAG compliance across different reading conditions.

The best way to build a responsive typography scale is defining a 4-6 size range using rem and em units, then testing readability at 100% and 200% text size to ensure scalable spacing and line heights.

Scalable typography works with dyslexia-friendly fonts by applying flexible rem-based sizing and adjustable spacing, ensuring text remains readable and maintains accessible contrast across responsive layouts and reader modes.

Yes, you can apply WCAG-compliant typography to existing responsive layouts by replacing fixed px dimensions with rem and em units, defining a scalable type system, and adjusting line heights for accessible contrast.

You should avoid fixed px units for typography when users need adjustable text sizes for accessibility, as px prevents scalable reading conditions; use rem and em units instead to maintain readable layouts at 200% zoom.