🏠 New in Low Baseline Support: rex unit
January 13, 2026
The rex CSS length unit is a font-relative length that is equal to the x-height of the root element.
Source features
css.types.length.rex[mdn]
January 13, 2026
The rex CSS length unit is a font-relative length that is equal to the x-height of the root element.
css.types.length.rex [mdn]