235005 2022-01-08 10:51:42 -0800 [css-flexbox][css-grid] Support last baseline 2022-10-12 10:13:59 -0700 1 1 1 Unclassified WebKit CSS Safari Technology Preview Unspecified Unspecified NEW InRadar P2 Normal --- 243523 243524 236959 1 philip webkit-unassigned sgill26 simon.fraser webkit-bug-importer zalan oldest_to_newest 1829235 0 philip 2022-01-08 10:51:42 -0800 The `last baseline` keyword for alignment properties (align-content, align-items, and align-self) is recognized by the parser but for both flex and grid layout, there are FIXMEs for actually supporting it: https://trac.webkit.org/browser/webkit/trunk/Source/WebCore/rendering/RenderFlexibleBox.cpp?rev=287742#L1679 https://trac.webkit.org/browser/webkit/trunk/Source/WebCore/rendering/RenderGrid.cpp?rev=287742#L1437 Support for this in other browsers can be seen here: https://developer.mozilla.org/en-US/docs/Web/CSS/align-content#browser_compatibility https://developer.mozilla.org/en-US/docs/Web/CSS/align-items#browser_compatibility https://developer.mozilla.org/en-US/docs/Web/CSS/align-self#browser_compatibility Note that the data is a bit messy and also wrong in places, which is why I started looking into support across browsers and filed this bug. https://crbug.com/885175 is the Chromium bug for this. 1831212 1 webkit-bug-importer 2022-01-15 10:52:16 -0800 <rdar://problem/87640022> 1905074 2 philip 2022-10-12 08:56:35 -0700 Bug 245792 did something, but I'm not sure if it fixed this bug. (Haven't tested.) 1905103 3 sgill26 2022-10-12 10:13:59 -0700 (In reply to Philip Jägenstedt from comment #2) > Bug 245792 did something, but I'm not sure if it fixed this bug. (Haven't > tested.) Not quite. That bug implemented the ability to get the last baseline of block containers via lastLineBaseline. There are a number of other bugs open that are similar but for other objects. These will be used to actually align items by last baseline for flex containers and grids (which are other bugs).