Typography MasterGuide

Optical Sizing

Adjusting letterform proportions for different sizes so type remains legible and balanced at both text and display sizes.

Learn more in the guide

Variable Fonts Guide

Related terms

Variable Fonts
Font files that store a range of design variations (weight, width, slant) in a single file, controllable via CSS axes.
X-Height
The height of lowercase letters such as x, a, and e, measured from the baseline to the top of the main body (excluding ascenders and descenders).