neerjapancholi has just created a new issue for https://github.com/w3c/csswg-drafts: == [css-multicol] Margin collapsing does not make sense with column-spans. == I'm filing this based on a discussion I just had with @dbaron. It seems like the multicol spec does not forbid margin collapsing with column-span elements. So the margin of a column-span can collapse w.r.t. just one column and that doesn't make sense. Also, the spec mentions that a multicol element itself creates a BFC but does not specifically say that the columns inside it also create a BFC. This might clarify the margin collapsing behavior for column-spans. An example of an existing test where this can be seen is - https://github.com/w3c/web-platform-tests/blob/master/css/css-multicol/multicol-span-all-margin-bottom-001.xht Screenshots of Chrome - (Orange and black bands are the column-spans)  Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/2203 using your GitHub accountReceived on Friday, 19 January 2018 00:48:19 UTC
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