css, 10 months ago @ppk You can read from here: https://drafts.csswg.org/css-contain-3/#containment-inline-size "Giving an element inline-size containment applies size containment to the inline-axis sizing of its principal box. This means the inline-axis intrinsic sizes of the principal box are determined as if the element had no content." The main idea is to avoid cyclic dependency.
@ppk You can read from here: https://drafts.csswg.org/css-contain-3/#containment-inline-size
"Giving an element inline-size containment applies size containment to the inline-axis sizing of its principal box. This means the inline-axis intrinsic sizes of the principal box are determined as if the element had no content."
The main idea is to avoid cyclic dependency.