Thanks for the bug report. What's going on here is: - Every child of a flex container has its display value "blockified", i.e. it becomes `display:block`, per https://drafts.csswg.org/css-flexbox-1/#flex-items - So we end up with `<br style='display:block'>`, effectively. - ...and it seems that this styling inhibits the ability for consecutive `<br>` elements to render as a multi-line break.
Bug 1547246 Comment 3 Edit History
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Thanks for the bug report. What's going on here is: - Every child of a flex container has its display value "blockified", i.e. it becomes `display:block`, per https://drafts.csswg.org/css-flexbox-1/#flex-items - So we end up with `<br style='display:block'>`, effectively. - ...and it seems that this styling inhibits the ability for `<br>` elements to take up any height.