Named presets map to a token-free length; anything else is passed through as
a CSS length, so a host with its own measure can supply '72ch'. The value
lands on a custom property rather than style.width, so the stylesheet
decides how the measure is applied (margins, padding, print overrides).
Set the content column's width.
Named presets map to a token-free length; anything else is passed through as a CSS length, so a host with its own measure can supply
'72ch'. The value lands on a custom property rather thanstyle.width, so the stylesheet decides how the measure is applied (margins, padding, print overrides).