Re: [csswg-drafts] [css-multicol-2] column-height:0 (#12787)

I don't think a column-height of 0 is of any use, but I don't know if there's precedent for using a `]0, +∞]` open interval for lengths. Open intervals are annoying in that since we don't define the precision, the smallest valid value is implementation dependent, and that's not great. We can work around that by setting a 1px minimum, but then again, why 1px specifically? Why not 1pt, or 1ch, or 0.1ch… it's very arbitrary.

Unless there's precedent or a clever solution I cannot think of, I suspect we should just let it start at 0 at the syntax level, and use a minimum size in terms of actual layout computation (`1px` will do fine, it's arbitrary, but that bothers me a lot less in layout than in parsing).

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Received on Monday, 15 September 2025 06:08:21 UTC