Web platform features explorer

text-box

Limited availability
Tags: css Groups: CSS > Text

The text-box CSS property sets the spacing above and below text based on a font's typographic features. For example, text-box: trim-both ex alphabetic trims the top to the top of the letter x and the bottom to the bottom of most letters, without descenders.

Learning resources on MDN

Browser support (view on caniuse.com)

Baseline availability blocked since February 2025 by Firefox (3 months)

Usage (according to Chrome Platform Status)

~0.671% of page loads. More data at chromestatus.