[csswg-drafts] [css-flexbox-1] Flex container baselines with reverse direction. (#7776)

bfgeek has just created a new issue for https://github.com/w3c/csswg-drafts:

== [css-flexbox-1] Flex container baselines with reverse direction. ==
Consider: https://www.software.hixie.ch/utilities/js/live-dom-viewer/?saved=10775

```html
<!DOCTYPE html>
baseline
<div style="border: solid 3px; display: inline-flex; flex-direction: row-reverse;">
  <div style="background: lime;">a</div>
  <div style="background: hotpink; font-size: 30px;">b</div>
</div>
```

Here all implementions pick up the "a" baseline (logically last), instead of the "b".

Similar for column flexboxes:
https://www.software.hixie.ch/utilities/js/live-dom-viewer/?saved=10776

Following this logic for "last baseline" would mean the last baseline is at the top. (Note Firefox doesn't appear to support this case - unsure what its doing).

Are implementations correct?
I believe implementations are incorrect per-spec - from: https://drafts.csswg.org/css-flexbox-1/#flex-baselines
"To this end, the baselines of a flex container are determined as follows (after reordering with [order](https://drafts.csswg.org/css-display-3/#propdef-order), and taking [flex-direction](https://drafts.csswg.org/css-flexbox-1/#propdef-flex-direction) into account):"

But should be explicit. Note there are several WPTs asserting this behaviour.

Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/7776 using your GitHub account


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Received on Thursday, 22 September 2022 03:41:50 UTC